[RFA] Update "func" help text to GNU standards

[Andrew Burgess]

* Tom Tromey <tom@tromey.com> [2018-06-05 10:40:17 -0600]:

> In my earlier series to change help text to follow the GNU standards
> for metasyntactic variables, I missed one: the "func" command.  This
> patch updates its help text.
> 
> Tested by the buildbot.
> 
> gdb/ChangeLog
> 2018-06-05  Tom Tromey  <tom@tromey.com>
> 
> 	* stack.c (_initialize_stack): Update "func" help text.

FWIW this looks good to me.

Thanks,
Andrew

> ---
>  gdb/ChangeLog | 4 ++++
>  gdb/stack.c   | 4 ++--
>  2 files changed, 6 insertions(+), 2 deletions(-)
> 
> diff --git a/gdb/stack.c b/gdb/stack.c
> index 97ebc8bc23f..caa71c1bd4e 100644
> --- a/gdb/stack.c
> +++ b/gdb/stack.c
> @@ -2556,8 +2556,8 @@ on this backtrace."));
>  
>    if (dbx_commands)
>      add_com ("func", class_stack, func_command, _("\
> -Select the stack frame that contains <func>.\n\
> -Usage: func <name>"));
> +Select the stack frame that contains NAME.\n\
> +Usage: func NAME"));
>  
>    add_setshow_enum_cmd ("frame-arguments", class_stack,
>  			print_frame_arguments_choices, &print_frame_arguments,
> -- 
> 2.13.6
>