Add -B to the help output from gprof, and add suitable documentation.

	PR 29627
	* gprof.c (usage): Add -B.
	* gprof.texi (synopsis): Add -B.
	(Output Options): Add entry for -B.

gprof/ChangeLog

+2022-09-29  Nick Clifton  <nickc@redhat.com>
+
+	PR 29627
+	* gprof.c (usage): Add -B.
+	* gprof.texi (synopsis): Add -B.
+	(Output Options): Add entry for -B.
+
 2022-07-08  Nick Clifton  <nickc@redhat.com>
 
 	* 2.39 branch created.

gprof/gprof.c

@@ -160,7 +160,7 @@ static void
 usage (FILE *stream, int status)
 {
   fprintf (stream, _("\
-Usage: %s [-[abcDhilLrsTvwxyz]] [-[ACeEfFJnNOpPqQRStZ][name]] [-I dirs]\n\
+Usage: %s [-[abcDhilLrsTvwxyz]] [-[ABCeEfFJnNOpPqQRStZ][name]] [-I dirs]\n\
 	[-d[num]] [-k from/to] [-m min-count] [-t table-length]\n\
 	[--[no-]annotated-source[=name]] [--[no-]exec-counts[=name]]\n\
 	[--[no-]flat-profile[=name]] [--[no-]graph[=name]]\n\

gprof/gprof.texi

@@ -110,7 +110,7 @@ in the section entitled ``GNU Free Documentation License''.
 
 @smallexample
 @c man begin SYNOPSIS
-gprof [ -[abcDhilLrsTvwxyz] ] [ -[ACeEfFJnNOpPqQRStZ][@var{name}] ]
+gprof [ -[abcDhilLrsTvwxyz] ] [ -[ABCeEfFJnNOpPqQRStZ][@var{name}] ]
  [ -I @var{dirs} ] [ -d[@var{num}] ] [ -k @var{from/to} ]
  [ -m @var{min-count} ] [ -R @var{map_file} ] [ -t @var{table-length} ]
  [ --[no-]annotated-source[=@var{name}] ]
@@ -489,6 +489,9 @@ verbose blurbs that try to explain the meaning of all of the fields in
 the tables.  This is useful if you intend to print out the output, or
 are tired of seeing the blurbs.
 
+@item -B
+The @samp{-B} option causes @code{gprof} to print the call graph analysis.
+
 @item -C[@var{symspec}]
 @itemx --exec-counts[=@var{symspec}]
 The @samp{-C} option causes @code{gprof} to