Update copyright year to 2020

Run "TZ=UTC0 admin/update-copyright $(git ls-files)".

55 files changed, 56 insertions, 55 deletions

diff --git a/doc/emacs/ChangeLog.1 b/doc/emacs/ChangeLog.1
index b9f7e49fc91..3513c6616f0 100644
--- a/doc/emacs/ChangeLog.1
+++ b/doc/emacs/ChangeLog.1
@@ -10919,7 +10919,7 @@
 ;; coding: utf-8
 ;; End:
 
-  Copyright (C) 1993-1999, 2001-2019 Free Software Foundation, Inc.
+  Copyright (C) 1993-1999, 2001-2020 Free Software Foundation, Inc.
 
   This file is part of GNU Emacs.
 
diff --git a/doc/emacs/Makefile.in b/doc/emacs/Makefile.in
index 01c6700197c..cbda862c4d7 100644
--- a/doc/emacs/Makefile.in
+++ b/doc/emacs/Makefile.in
@@ -1,6 +1,6 @@
 ### @configure_input@
 
-# Copyright (C) 1994, 1996-2019 Free Software Foundation, Inc.
+# Copyright (C) 1994, 1996-2020 Free Software Foundation, Inc.
 
 # This file is part of GNU Emacs.
 
diff --git a/doc/emacs/abbrevs.texi b/doc/emacs/abbrevs.texi
index 9c8a280efb3..21bf8c53325 100644
--- a/doc/emacs/abbrevs.texi
+++ b/doc/emacs/abbrevs.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2001-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2001--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node Abbrevs
diff --git a/doc/emacs/ack.texi b/doc/emacs/ack.texi
index ed1c0818843..e8d0a4b3a8d 100644
--- a/doc/emacs/ack.texi
+++ b/doc/emacs/ack.texi
@@ -1,6 +1,6 @@
 @c -*- coding: utf-8 -*-
 @c This is part of the Emacs manual.
-@c Copyright (C) 1994-1997, 1999-2019 Free Software Foundation, Inc.
+@c Copyright (C) 1994--1997, 1999--2020 Free Software Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @c
 @node Acknowledgments
diff --git a/doc/emacs/anti.texi b/doc/emacs/anti.texi
index 9eac08c2643..6cf573ea279 100644
--- a/doc/emacs/anti.texi
+++ b/doc/emacs/anti.texi
@@ -1,6 +1,6 @@
 @c -*- coding: utf-8 -*-
 @c This is part of the Emacs manual.
-@c Copyright (C) 2005-2019 Free Software Foundation, Inc.
+@c Copyright (C) 2005--2020 Free Software Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 
 @node Antinews
diff --git a/doc/emacs/arevert-xtra.texi b/doc/emacs/arevert-xtra.texi
index 37e2f9e5818..ef42fb2a7c0 100644
--- a/doc/emacs/arevert-xtra.texi
+++ b/doc/emacs/arevert-xtra.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 2004-2019 Free Software Foundation, Inc.
+@c Copyright (C) 2004--2020 Free Software Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @c
 @c This file is included either in emacs-xtra.texi (when producing the
diff --git a/doc/emacs/basic.texi b/doc/emacs/basic.texi
index 5939d45f43c..ac953e1907b 100644
--- a/doc/emacs/basic.texi
+++ b/doc/emacs/basic.texi
@@ -1,6 +1,6 @@
 @c -*- coding: utf-8 -*-
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2000-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2000--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node Basic
diff --git a/doc/emacs/buffers.texi b/doc/emacs/buffers.texi
index fc2ee6f638d..6a53942d689 100644
--- a/doc/emacs/buffers.texi
+++ b/doc/emacs/buffers.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2000-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2000--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node Buffers
diff --git a/doc/emacs/building.texi b/doc/emacs/building.texi
index f7809d4aa99..02f18865f39 100644
--- a/doc/emacs/building.texi
+++ b/doc/emacs/building.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2000-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2000--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node Building
diff --git a/doc/emacs/cal-xtra.texi b/doc/emacs/cal-xtra.texi
index 7fa20deac04..3f1198987d9 100644
--- a/doc/emacs/cal-xtra.texi
+++ b/doc/emacs/cal-xtra.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.  -*- coding: utf-8 -*-
-@c Copyright (C) 2004-2019 Free Software Foundation, Inc.
+@c Copyright (C) 2004--2020 Free Software Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @c
 @c This file is included either in emacs-xtra.texi (when producing the
diff --git a/doc/emacs/calendar.texi b/doc/emacs/calendar.texi
index 5f2af944e33..09111853958 100644
--- a/doc/emacs/calendar.texi
+++ b/doc/emacs/calendar.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.  -*- coding: utf-8 -*-
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2000-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2000--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node Calendar/Diary
diff --git a/doc/emacs/cmdargs.texi b/doc/emacs/cmdargs.texi
index b3d9af0baf9..d3fda285f26 100644
--- a/doc/emacs/cmdargs.texi
+++ b/doc/emacs/cmdargs.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2001-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2001--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node Emacs Invocation
diff --git a/doc/emacs/commands.texi b/doc/emacs/commands.texi
index a107b8958ba..ad0cbc6f659 100644
--- a/doc/emacs/commands.texi
+++ b/doc/emacs/commands.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2001-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2001--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @iftex
diff --git a/doc/emacs/custom.texi b/doc/emacs/custom.texi
index d1cbb299c26..1958a86b92d 100644
--- a/doc/emacs/custom.texi
+++ b/doc/emacs/custom.texi
@@ -1,6 +1,6 @@
 @c -*- coding: utf-8 -*-
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2000-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2000--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node Customization
diff --git a/doc/emacs/dired-xtra.texi b/doc/emacs/dired-xtra.texi
index 025da21478a..25cffe49161 100644
--- a/doc/emacs/dired-xtra.texi
+++ b/doc/emacs/dired-xtra.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 2004-2019 Free Software Foundation, Inc.
+@c Copyright (C) 2004--2020 Free Software Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @c
 @c This file is included either in emacs-xtra.texi (when producing the
diff --git a/doc/emacs/dired.texi b/doc/emacs/dired.texi
index 8a4fa7e183d..5a64425f271 100644
--- a/doc/emacs/dired.texi
+++ b/doc/emacs/dired.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2000-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2000--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node Dired
diff --git a/doc/emacs/display.texi b/doc/emacs/display.texi
index 313abde6cf6..8444aef3bdd 100644
--- a/doc/emacs/display.texi
+++ b/doc/emacs/display.texi
@@ -1,6 +1,6 @@
 @c -*- coding: utf-8 -*-
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2000-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2000--2020 Free Software
 @c Foundation, Inc.
 
 @c See file emacs.texi for copying conditions.
diff --git a/doc/emacs/emacs-xtra.texi b/doc/emacs/emacs-xtra.texi
index e9231b4e3a9..544b808c7d4 100644
--- a/doc/emacs/emacs-xtra.texi
+++ b/doc/emacs/emacs-xtra.texi
@@ -16,7 +16,7 @@
 @copying
 This manual describes specialized features of Emacs.
 
-Copyright @copyright{} 2004--2019 Free Software Foundation, Inc.
+Copyright @copyright{} 2004--2020 Free Software Foundation, Inc.
 
 @quotation
 Permission is granted to copy, distribute and/or modify this document
diff --git a/doc/emacs/emacs.texi b/doc/emacs/emacs.texi
index d23e682cc80..1368f3e2980 100644
--- a/doc/emacs/emacs.texi
+++ b/doc/emacs/emacs.texi
@@ -20,7 +20,8 @@ This is the @cite{GNU Emacs Manual},
 @end ifclear
 updated for Emacs version @value{EMACSVER}.
 
-Copyright @copyright{} 1985--1987, 1993--2019 Free Software Foundation, Inc.
+Copyright @copyright{} 1985--1987, 1993--2020 Free Software Foundation,
+Inc.
 
 @quotation
 Permission is granted to copy, distribute and/or modify this document
diff --git a/doc/emacs/emerge-xtra.texi b/doc/emacs/emerge-xtra.texi
index 6c5e46b6de6..d5759650c23 100644
--- a/doc/emacs/emerge-xtra.texi
+++ b/doc/emacs/emerge-xtra.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 2004-2019 Free Software Foundation, Inc.
+@c Copyright (C) 2004--2020 Free Software Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @c
 @c This file is included either in emacs-xtra.texi (when producing the
diff --git a/doc/emacs/entering.texi b/doc/emacs/entering.texi
index 4362553a223..4cd5c65df57 100644
--- a/doc/emacs/entering.texi
+++ b/doc/emacs/entering.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 2001-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 2001--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @iftex
diff --git a/doc/emacs/files.texi b/doc/emacs/files.texi
index f5dd408cc9f..0af3ac24eb1 100644
--- a/doc/emacs/files.texi
+++ b/doc/emacs/files.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 1999-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 1999--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node Files
diff --git a/doc/emacs/fixit.texi b/doc/emacs/fixit.texi
index fc610583c87..171a9bc06fc 100644
--- a/doc/emacs/fixit.texi
+++ b/doc/emacs/fixit.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2001-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2001--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node Fixit
diff --git a/doc/emacs/fortran-xtra.texi b/doc/emacs/fortran-xtra.texi
index 30f7c421d51..11222e532eb 100644
--- a/doc/emacs/fortran-xtra.texi
+++ b/doc/emacs/fortran-xtra.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 2004-2019 Free Software Foundation, Inc.
+@c Copyright (C) 2004--2020 Free Software Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @c
 @c This file is included either in emacs-xtra.texi (when producing the
diff --git a/doc/emacs/frames.texi b/doc/emacs/frames.texi
index 560d612ed43..002297c2599 100644
--- a/doc/emacs/frames.texi
+++ b/doc/emacs/frames.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 1999-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 1999--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node Frames
diff --git a/doc/emacs/glossary.texi b/doc/emacs/glossary.texi
index 30ddffab696..416431b8cd4 100644
--- a/doc/emacs/glossary.texi
+++ b/doc/emacs/glossary.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2001-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2001--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node Glossary
diff --git a/doc/emacs/gnu.texi b/doc/emacs/gnu.texi
index fef4f71c6ee..0028b484c95 100644
--- a/doc/emacs/gnu.texi
+++ b/doc/emacs/gnu.texi
@@ -1,4 +1,4 @@
-@c Copyright (C) 1985-1987, 1993, 1995, 2001-2019 Free Software
+@c Copyright (C) 1985--1987, 1993, 1995, 2001--2020 Free Software
 @c Foundation, Inc.
 @c
 @c Permission is granted to anyone to make or distribute verbatim copies
diff --git a/doc/emacs/help.texi b/doc/emacs/help.texi
index 4851659b8b7..fce6720b934 100644
--- a/doc/emacs/help.texi
+++ b/doc/emacs/help.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2000-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2000--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node Help
diff --git a/doc/emacs/indent.texi b/doc/emacs/indent.texi
index 654c64a7b2f..d0360ac333b 100644
--- a/doc/emacs/indent.texi
+++ b/doc/emacs/indent.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2001-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2001--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node Indentation
diff --git a/doc/emacs/killing.texi b/doc/emacs/killing.texi
index f5f715dada4..834a5c6159d 100644
--- a/doc/emacs/killing.texi
+++ b/doc/emacs/killing.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2000-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2000--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 
diff --git a/doc/emacs/kmacro.texi b/doc/emacs/kmacro.texi
index 3710611c763..7e5085cd2f5 100644
--- a/doc/emacs/kmacro.texi
+++ b/doc/emacs/kmacro.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2000-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2000--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node Keyboard Macros
diff --git a/doc/emacs/m-x.texi b/doc/emacs/m-x.texi
index 2b2be38cb37..fc2d2d8c84d 100644
--- a/doc/emacs/m-x.texi
+++ b/doc/emacs/m-x.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2001-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2001--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node M-x
diff --git a/doc/emacs/macos.texi b/doc/emacs/macos.texi
index 8a40d11fc28..ae1b8d654f0 100644
--- a/doc/emacs/macos.texi
+++ b/doc/emacs/macos.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 2000-2019 Free Software Foundation, Inc.
+@c Copyright (C) 2000--2020 Free Software Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node Mac OS / GNUstep
 @appendix Emacs and macOS / GNUstep
diff --git a/doc/emacs/maintaining.texi b/doc/emacs/maintaining.texi
index 6985486d09e..a6f66f6e7f3 100644
--- a/doc/emacs/maintaining.texi
+++ b/doc/emacs/maintaining.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual., Abbrevs, This is part of the Emacs manual., Top
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 1999-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 1999--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node Maintaining
diff --git a/doc/emacs/mark.texi b/doc/emacs/mark.texi
index f012d72fc2a..97aeed896a0 100644
--- a/doc/emacs/mark.texi
+++ b/doc/emacs/mark.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2001-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2001--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node Mark
diff --git a/doc/emacs/mini.texi b/doc/emacs/mini.texi
index bf969dd02d2..5d2a0077ca4 100644
--- a/doc/emacs/mini.texi
+++ b/doc/emacs/mini.texi
@@ -1,6 +1,6 @@
 @c -*- coding: utf-8 -*-
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2000-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2000--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node Minibuffer
diff --git a/doc/emacs/misc.texi b/doc/emacs/misc.texi
index 63b65e779c6..ab3318c4a24 100644
--- a/doc/emacs/misc.texi
+++ b/doc/emacs/misc.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2000-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2000--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @iftex
diff --git a/doc/emacs/modes.texi b/doc/emacs/modes.texi
index 64034d71860..92d60d2d7c2 100644
--- a/doc/emacs/modes.texi
+++ b/doc/emacs/modes.texi
@@ -1,6 +1,6 @@
 @c -*- coding: utf-8 -*-
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2000-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2000--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node Modes
diff --git a/doc/emacs/msdos-xtra.texi b/doc/emacs/msdos-xtra.texi
index e0d3bcd4093..230e918c842 100644
--- a/doc/emacs/msdos-xtra.texi
+++ b/doc/emacs/msdos-xtra.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 2004-2019 Free Software Foundation, Inc.
+@c Copyright (C) 2004--2020 Free Software Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @c
 @c This file is included either in emacs-xtra.texi (when producing the
diff --git a/doc/emacs/msdos.texi b/doc/emacs/msdos.texi
index 95b3d132ca5..3275fded565 100644
--- a/doc/emacs/msdos.texi
+++ b/doc/emacs/msdos.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2000-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2000--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node Microsoft Windows
diff --git a/doc/emacs/mule.texi b/doc/emacs/mule.texi
index bca917de105..e3fe20c76f8 100644
--- a/doc/emacs/mule.texi
+++ b/doc/emacs/mule.texi
@@ -1,6 +1,6 @@
 @c -*- coding: utf-8 -*-
 @c This is part of the Emacs manual.
-@c Copyright (C) 1997, 1999-2019 Free Software Foundation, Inc.
+@c Copyright (C) 1997, 1999--2020 Free Software Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node International
 @chapter International Character Set Support
diff --git a/doc/emacs/package.texi b/doc/emacs/package.texi
index b9eb0a5852d..cca602e7a05 100644
--- a/doc/emacs/package.texi
+++ b/doc/emacs/package.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2000-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2000--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node Packages
diff --git a/doc/emacs/picture-xtra.texi b/doc/emacs/picture-xtra.texi
index 704cff16502..9decda30daa 100644
--- a/doc/emacs/picture-xtra.texi
+++ b/doc/emacs/picture-xtra.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 2004-2019 Free Software Foundation, Inc.
+@c Copyright (C) 2004--2020 Free Software Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @c
 @c This file is included either in emacs-xtra.texi (when producing the
diff --git a/doc/emacs/programs.texi b/doc/emacs/programs.texi
index fe5093147b0..683374c6153 100644
--- a/doc/emacs/programs.texi
+++ b/doc/emacs/programs.texi
@@ -1,6 +1,6 @@
 @c -*- coding: utf-8 -*-
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 1999-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 1999--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node Programs
diff --git a/doc/emacs/regs.texi b/doc/emacs/regs.texi
index 68a8245b34d..d1b9ea8f679 100644
--- a/doc/emacs/regs.texi
+++ b/doc/emacs/regs.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2001-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2001--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node Registers
diff --git a/doc/emacs/rmail.texi b/doc/emacs/rmail.texi
index 4901ca9709e..14ee062b6cf 100644
--- a/doc/emacs/rmail.texi
+++ b/doc/emacs/rmail.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2001-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2001--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node Rmail
diff --git a/doc/emacs/screen.texi b/doc/emacs/screen.texi
index 67da9daab87..773bb939441 100644
--- a/doc/emacs/screen.texi
+++ b/doc/emacs/screen.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2001-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2001--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node Screen
diff --git a/doc/emacs/search.texi b/doc/emacs/search.texi
index aa21312039a..16916617a2a 100644
--- a/doc/emacs/search.texi
+++ b/doc/emacs/search.texi
@@ -1,6 +1,6 @@
 @c -*- coding: utf-8 -*-
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2000-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2000--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node Search
diff --git a/doc/emacs/sending.texi b/doc/emacs/sending.texi
index c6b8912e2e3..283a59a2912 100644
--- a/doc/emacs/sending.texi
+++ b/doc/emacs/sending.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2000-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2000--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node Sending Mail
diff --git a/doc/emacs/text.texi b/doc/emacs/text.texi
index b294e467200..281e24421c2 100644
--- a/doc/emacs/text.texi
+++ b/doc/emacs/text.texi
@@ -1,6 +1,6 @@
 @c -*- coding: utf-8 -*-
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2000-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2000--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node Text
diff --git a/doc/emacs/trouble.texi b/doc/emacs/trouble.texi
index 13d3e8475ce..9cbcf206106 100644
--- a/doc/emacs/trouble.texi
+++ b/doc/emacs/trouble.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2001-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2001--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @iftex
diff --git a/doc/emacs/vc-xtra.texi b/doc/emacs/vc-xtra.texi
index ca919e847e4..37804242eaf 100644
--- a/doc/emacs/vc-xtra.texi
+++ b/doc/emacs/vc-xtra.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 2004-2019 Free Software Foundation, Inc.
+@c Copyright (C) 2004--2020 Free Software Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @c
 @c This file is included in emacs-xtra.texi when producing the printed
diff --git a/doc/emacs/vc1-xtra.texi b/doc/emacs/vc1-xtra.texi
index 1c17695c8dd..26199924d58 100644
--- a/doc/emacs/vc1-xtra.texi
+++ b/doc/emacs/vc1-xtra.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 2004-2019 Free Software Foundation, Inc.
+@c Copyright (C) 2004--2020 Free Software Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @c
 @c This file is included either in vc-xtra.texi (when producing the
diff --git a/doc/emacs/windows.texi b/doc/emacs/windows.texi
index 2c5a8463992..2e07a98f57d 100644
--- a/doc/emacs/windows.texi
+++ b/doc/emacs/windows.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2000-2019 Free Software
+@c Copyright (C) 1985--1987, 1993--1995, 1997, 2000--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node Windows
diff --git a/doc/emacs/xresources.texi b/doc/emacs/xresources.texi
index 3b9448f8a8f..730cf304e2b 100644
--- a/doc/emacs/xresources.texi
+++ b/doc/emacs/xresources.texi
@@ -1,5 +1,5 @@
 @c This is part of the Emacs manual.
-@c Copyright (C) 1987, 1993-1995, 1997, 2001-2019 Free Software
+@c Copyright (C) 1987, 1993--1995, 1997, 2001--2020 Free Software
 @c Foundation, Inc.
 @c See file emacs.texi for copying conditions.
 @node X Resources