Update readline to version 5.2. This fixes bug#18431.

cmd-line-utils/readline/INSTALL:
  update readline to version 5.2
cmd-line-utils/readline/README:
  update readline to version 5.2
cmd-line-utils/readline/bind.c:
  update readline to version 5.2
cmd-line-utils/readline/callback.c:
  update readline to version 5.2
cmd-line-utils/readline/chardefs.h:
  update readline to version 5.2
cmd-line-utils/readline/compat.c:
  update readline to version 5.2
cmd-line-utils/readline/complete.c:
  update readline to version 5.2
cmd-line-utils/readline/configure.in:
  update readline to version 5.2
cmd-line-utils/readline/display.c:
  update readline to version 5.2
cmd-line-utils/readline/funmap.c:
  update readline to version 5.2
cmd-line-utils/readline/histexpand.c:
  update readline to version 5.2
cmd-line-utils/readline/histfile.c:
  update readline to version 5.2
cmd-line-utils/readline/history.c:
  update readline to version 5.2
cmd-line-utils/readline/histsearch.c:
  update readline to version 5.2
cmd-line-utils/readline/input.c:
  update readline to version 5.2
cmd-line-utils/readline/isearch.c:
  update readline to version 5.2
cmd-line-utils/readline/keymaps.c:
  update readline to version 5.2
cmd-line-utils/readline/kill.c:
  update readline to version 5.2
cmd-line-utils/readline/macro.c:
  update readline to version 5.2
cmd-line-utils/readline/mbutil.c:
  update readline to version 5.2
cmd-line-utils/readline/misc.c:
  update readline to version 5.2
cmd-line-utils/readline/nls.c:
  update readline to version 5.2
cmd-line-utils/readline/parens.c:
  update readline to version 5.2
cmd-line-utils/readline/readline.c:
  update readline to version 5.2
cmd-line-utils/readline/readline.h:
  update readline to version 5.2
cmd-line-utils/readline/rlconf.h:
  update readline to version 5.2
cmd-line-utils/readline/rldefs.h:
  update readline to version 5.2
cmd-line-utils/readline/rlmbutil.h:
  update readline to version 5.2
cmd-line-utils/readline/rlprivate.h:
  update readline to version 5.2
cmd-line-utils/readline/rltty.c:
  update readline to version 5.2
cmd-line-utils/readline/savestring.c:
  update readline to version 5.2
cmd-line-utils/readline/search.c:
  update readline to version 5.2
cmd-line-utils/readline/shell.c:
  update readline to version 5.2
cmd-line-utils/readline/signals.c:
  update readline to version 5.2
cmd-line-utils/readline/terminal.c:
  update readline to version 5.2
cmd-line-utils/readline/text.c:
  update readline to version 5.2
cmd-line-utils/readline/tilde.c:
  update readline to version 5.2
cmd-line-utils/readline/tilde.h:
  update readline to version 5.2
cmd-line-utils/readline/undo.c:
  update readline to version 5.2
cmd-line-utils/readline/util.c:
  update readline to version 5.2
cmd-line-utils/readline/vi_keymap.c:
  update readline to version 5.2
cmd-line-utils/readline/vi_mode.c:
  update readline to version 5.2
cmd-line-utils/readline/xmalloc.c:
  update readline to version 5.2

1 files changed, 2 insertions, 4 deletions

diff --git a/cmd-line-utils/readline/chardefs.h b/cmd-line-utils/readline/chardefs.h
index 04a3b7a8e9c..def3a111bd3 100644
--- a/cmd-line-utils/readline/chardefs.h
+++ b/cmd-line-utils/readline/chardefs.h
@@ -59,11 +59,7 @@
 #define largest_char 255		    /* Largest character value. */
 
 #define CTRL_CHAR(c) ((c) < control_character_threshold && (((c) & 0x80) == 0))
-#if largest_char >= 255
-#define META_CHAR(c) ((c) > meta_character_threshold)
-#else
 #define META_CHAR(c) ((c) > meta_character_threshold && (c) <= largest_char)
-#endif
 
 #define CTRL(c) ((c) & control_character_mask)
 #define META(c) ((c) | meta_character_bit)
@@ -90,6 +86,8 @@
 /* Some systems define these; we want our definitions. */
 #undef ISPRINT
 
+/* Beware:  these only work with single-byte ASCII characters. */
+
 #define ISALNUM(c)	(IN_CTYPE_DOMAIN (c) && isalnum (c))
 #define ISALPHA(c)	(IN_CTYPE_DOMAIN (c) && isalpha (c))
 #define ISDIGIT(c)	(IN_CTYPE_DOMAIN (c) && isdigit (c))