[gnome-control-center] display: Add missing include to fix build

[Vincent Untz <vuntz src gnome org>]

commit d54d9de85775e088920be5f568471a65da2b9ee6
Author: Vincent Untz <vuntz gnome org>
Date:   Sat Sep 18 12:25:06 2010 +0200

    display: Add missing include to fix build

 panels/display/xrandr-capplet.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/panels/display/xrandr-capplet.c b/panels/display/xrandr-capplet.c
index 5b0a651..4ca7e3d 100644
--- a/panels/display/xrandr-capplet.c
+++ b/panels/display/xrandr-capplet.c
@@ -20,9 +20,11 @@
  */
 
 #include <config.h>
-#include <gtk/gtk.h>
 #include <string.h>
 #include <stdlib.h>
+#include <sys/wait.h>
+
+#include <gtk/gtk.h>
 #include "scrollarea.h"
 #define GNOME_DESKTOP_USE_UNSTABLE_API
 #include <libgnomeui/gnome-rr.h>