[PATCH xrandr] Document --brightness option in --help message

[Matt Turner]

On Sat, Feb 25, 2012 at 9:36 PM, Mikhail Gusarov
<dottedmag at dottedmag.net> wrote:
> This option is introduced more than two years ago, mentioned in manpage, but not
> in the --help message.
>
> Signed-off-by: Mikhail Gusarov <dottedmag at dottedmag.net>
> ---
>  xrandr.c |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
>
> diff --git a/xrandr.c b/xrandr.c
> index 35dff3e..a4a9d17 100644
> --- a/xrandr.c
> +++ b/xrandr.c
> @@ -133,6 +133,7 @@ usage(void)
>     fprintf(stderr, "      --crtc <crtc>\n");
>     fprintf(stderr, "      --panning <w>x<h>[+<x>+<y>[/<track:w>x<h>+<x>+<y>[/<border:l>/<t>/<r>/<b>]]]\n");
>     fprintf(stderr, "      --gamma <r>:<g>:<b>\n");
> +    fprintf(stderr, "      --brightness <b>\n");
>     fprintf(stderr, "      --primary\n");
>     fprintf(stderr, "  --noprimary\n");
>     fprintf(stderr, "  --newmode <name> <clock MHz>\n");
> --
> 1.7.9

I just learned about and started using this option two days ago.
Definitely needed change.

Reviewed-by: Matt Turner <mattst88 at gmail.com>