Update help of the "frame" command

The help message of the "frame" command states that nothing is printed
if the command is executed from the command file or user-defined
command.  My testing leads me to think that this is not true (at least
today).

  (gdb) bt
  #0  bar (n=17) at test.c:9
  #1  0x00000000004006e0 in foo (v=17) at test.c:13
  #2  0x00000000004006f0 in main () at test.c:21
  (gdb) frame
  #0  bar (n=17) at test.c:9
  9	    baz(n);
  (gdb) define foo
  Type commands for definition of "foo".
  End with a line saying just "end".
  >frame 1
  >end
  (gdb) foo
  #1  0x00000000004006e0 in foo (v=17) at test.c:13
  13	    bar(v);

This patch simply removes that bit from the help message.  I didn't find
anything corresponding to this in the documentation that needs to be
fixed.

The behavior change corresponding to this documentation change was done
in commit b00771232fab861fb31e42dfd5f6643ba1b43cc9.

gdb/ChangeLog:

	* stack.c (_initialize_stack): Update "frame" command help message.

2 files changed, 5 insertions, 3 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 7f16a5f..4733d8d 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,7 @@
+2017-01-10  Simon Marchi  <simon.marchi@ericsson.com>
+
+	* stack.c (_initialize_stack): Update "frame" command help message.
+
 2017-01-08  Iain Buclaw  <ibuclaw@gdcproject.org>
 
 	* d-exp.y (CastExpression): Emit UNOP_CAST_TYPE.
diff --git a/gdb/stack.c b/gdb/stack.c
index 1d43971..e00e297 100644
--- a/gdb/stack.c
+++ b/gdb/stack.c
@@ -2629,9 +2629,7 @@ This is useful in command scripts."));
 Select and print a stack frame.\nWith no argument, \
 print the selected stack frame.  (See also \"info frame\").\n\
 An argument specifies the frame to select.\n\
-It can be a stack frame number or the address of the frame.\n\
-With argument, nothing is printed if input is coming from\n\
-a command file or a user-defined command."));
+It can be a stack frame number or the address of the frame.\n"));
 
   add_com_alias ("f", "frame", class_stack, 1);