[mutter] keybindings: Silence a compiler warning

[Florian MÃllner <fmuellner src gnome org>]

commit b422b6f06e33e054774810cd9f7bb97a451d9efd
Author: Florian MÃllner <fmuellner gnome org>
Date:   Wed Aug 29 23:06:45 2012 +0200

    keybindings: Silence a compiler warning
    
    https://bugzilla.gnome.org/show_bug.cgi?id=682993

 src/core/keybindings.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/core/keybindings.c b/src/core/keybindings.c
index 157eddf..edfaa2c 100644
--- a/src/core/keybindings.c
+++ b/src/core/keybindings.c
@@ -671,7 +671,7 @@ meta_display_get_keybinding_action (MetaDisplay  *display,
    * of mutter keybindings while holding a grab, the overlay-key-only-pressed
    * tracking is left to the plugin here.
    */
-  if (keycode == display->overlay_key_combo.keycode)
+  if (keycode == (unsigned int)display->overlay_key_combo.keycode)
     return META_KEYBINDING_ACTION_OVERLAY_KEY;
 
   keysym = XKeycodeToKeysym (display->xdisplay, keycode, 0);