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authorGlenn Morris <rgm@gnu.org>2008-12-06 03:30:36 +0000
committerGlenn Morris <rgm@gnu.org>2008-12-06 03:30:36 +0000
commit716a27423ca753c33dac6642181eac4ce64218f8 (patch)
tree312e589df6d6490734efe54b34aa9f38f760ad53
parentf756c1b2362c6a8a28443b49e59bd2252cb10172 (diff)
downloademacs-716a27423ca753c33dac6642181eac4ce64218f8.tar.gz
(Old Revisions): Improve previous change.
-rw-r--r--doc/emacs/ChangeLog4
-rw-r--r--doc/emacs/maintaining.texi11
2 files changed, 11 insertions, 4 deletions
diff --git a/doc/emacs/ChangeLog b/doc/emacs/ChangeLog
index 3fbeda4e615..8d6e9504918 100644
--- a/doc/emacs/ChangeLog
+++ b/doc/emacs/ChangeLog
@@ -1,3 +1,7 @@
+2008-12-06 Glenn Morris <rgm@gnu.org>
+
+ * maintaining.texi (Old Revisions): Improve previous change.
+
2008-12-05 Richard M Stallman <rms@gnu.org>
* anti.texi (Antinews): Minor fixes.
diff --git a/doc/emacs/maintaining.texi b/doc/emacs/maintaining.texi
index ee0f2c51b01..1cca93141e6 100644
--- a/doc/emacs/maintaining.texi
+++ b/doc/emacs/maintaining.texi
@@ -1,6 +1,7 @@
@c This is part of the Emacs manual.
@c Copyright (C) 1985, 1986, 1987, 1993, 1994, 1995, 1997, 1999, 2000,
-@c 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+@c 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
+@c Free Software Foundation, Inc.
@c See file emacs.texi for copying conditions.
@node Maintaining, Abbrevs, Building, Top
@chapter Maintaining Large Programs
@@ -713,9 +714,11 @@ value of @code{vc-@var{backend}-diff-switches}, @code{vc-diff-switches},
and @code{diff-switches} (@pxref{Comparing Files}), in that order.
Since @code{nil} means to check the next variable in the sequence,
either of the first two may use the value @code{t} to mean no switches at all.
-The @samp{vc@dots{}diff-switches} variables are all either @code{nil}
-or @code{t} (for those version control systems that do not accept common
-@code{diff} options) by default.
+Most of the @samp{vc@dots{}diff-switches} variables default to
+@code{nil}, but some default to @code{t}. These are for those version
+control systems (e.g. SVN) whose @code{diff} implementations do not
+accept common options (e.g. @samp{-c}) likely to be in
+@code{diff-switches}.
The buffer produced by @kbd{C-x v =} supports the commands of
Compilation mode (@pxref{Compilation Mode}), such as @kbd{C-x `} and