[PATCH xrandr] Mention of --brightness with -h option

[Stéphane Aulery]

Reported by jidanni at http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=709569

Signed-off-by: Stéphane Aulery <lkppo at free.fr>
---
 xrandr.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/xrandr.c b/xrandr.c
index da786cb..0fffaa0 100644
--- a/xrandr.c
+++ b/xrandr.c
@@ -139,6 +139,7 @@ usage(void)
     printf("      --crtc <crtc>\n");
     printf("      --panning <w>x<h>[+<x>+<y>[/<track:w>x<h>+<x>+<y>[/<border:l>/<t>/<r>/<b>]]]\n");
     printf("      --gamma <r>:<g>:<b>\n");
+    printf("      --brightness <value>\n");
     printf("      --primary\n");
     printf("  --noprimary\n");
     printf("  --newmode <name> <clock MHz>\n");
-- 
1.7.10.4