Rename `caution' global.

[Pedro Alves <palves at redhat dot com>]

"set confirm" used to be called "set caution":

Sat Dec 22 02:51:40 1990  John Gilmore  (gnu at cygint)

        * main.c:  Replace "stupid" with "caution"; you now "set caution
        on or off".

Mon Apr 15 21:45:35 1991  Jim Kingdon  (kingdon at cygint.cygnus.com)

        * main.c (initialize_main): Rename "set caution" to
        "set confirm".

But the global and the command callback functions were never updated
to reflect the new naming.  This fixes it.  Applied.

gdb/
2012-01-23  Pedro Alves  <palves@redhat.com>

	* top.c (caution): Rename to ...
	(confirm): ... this.
	(show_caution): Rename to ...
	(show_confirm): ... this.
	(quit_cover): Adjust.
	(init_main): Adjust.
	* top.h (caution): Rename to ...
	(confirm): ... this.
	* utils.c (internal_vproblem, defaulted_query): Adjust.
---
 gdb/top.c   |   14 +++++++-------
 gdb/top.h   |    2 +-
 gdb/utils.c |    4 ++--
 3 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/gdb/top.c b/gdb/top.c
index 346d73b..e41f56c 100644
--- a/gdb/top.c
+++ b/gdb/top.c
@@ -101,10 +101,10 @@ extern char lang_frame_mismatch_warn[];		/* language.c */
 /* Flag for whether we want to confirm potentially dangerous
    operations.  Default is yes.  */

-int caution = 1;
+int confirm = 1;

 static void
-show_caution (struct ui_file *file, int from_tty,
+show_confirm (struct ui_file *file, int from_tty,
 	      struct cmd_list_element *c, const char *value)
 {
   fprintf_filtered (file, _("Whether to confirm potentially "
@@ -291,9 +291,9 @@ void (*deprecated_context_hook) (int id);
 /* static */ void
 quit_cover (void)
 {
-  caution = 0;			/* Throw caution to the wind -- we're exiting.
-				   This prevents asking the user dumb
-				   questions.  */
+  /* Stop asking user for confirmation --- we're exiting.  This
+     prevents asking the user dumb questions.  */
+  confirm = 0;
   quit_command ((char *) 0, 0);
 }
 #endif /* defined SIGHUP */
@@ -1635,11 +1635,11 @@ Show the filename in which to record the command history"), _("\
 			    show_history_filename,
 			    &sethistlist, &showhistlist);

-  add_setshow_boolean_cmd ("confirm", class_support, &caution, _("\
+  add_setshow_boolean_cmd ("confirm", class_support, &confirm, _("\
 Set whether to confirm potentially dangerous operations."), _("\
 Show whether to confirm potentially dangerous operations."), NULL,
 			   NULL,
-			   show_caution,
+			   show_confirm,
 			   &setlist, &showlist);

   add_setshow_zinteger_cmd ("annotate", class_obscure, &annotation_level, _("\
diff --git a/gdb/top.h b/gdb/top.h
index 55ce104..6f74233 100644
--- a/gdb/top.h
+++ b/gdb/top.h
@@ -26,7 +26,7 @@ extern char *saved_command_line;
 extern int saved_command_line_size;
 extern FILE *instream;
 extern int in_user_command;
-extern int caution;
+extern int confirm;
 extern char gdb_dirbuf[1024];
 extern int inhibit_gdbinit;
 extern int epoch_interface;
diff --git a/gdb/utils.c b/gdb/utils.c
index 4863e41..39ec254 100644
--- a/gdb/utils.c
+++ b/gdb/utils.c
@@ -970,7 +970,7 @@ internal_vproblem (struct internal_problem *problem,
       /* Default (yes/batch case) is to quit GDB.  When in batch mode
 	 this lessens the likelihood of GDB going into an infinite
 	 loop.  */
-      if (caution == 0)
+      if (!confirm)
         {
           /* Emit the message and quit.  */
           fputs_unfiltered (reason, gdb_stderr);
@@ -1384,7 +1384,7 @@ defaulted_query (const char *ctlstr, const char defchar, va_list args)

   /* Automatically answer the default value if the user did not want
      prompts or the command was issued with the server prefix.  */
-  if (! caution || server_command)
+  if (!confirm || server_command)
     return def_value;

   /* If input isn't coming from the user directly, just say what