[mutter/wayland] window: Fix build once more

[Jasper St. Pierre <jstpierre src gnome org>]

commit 6dbb3fddce34cfcbe57e9fe32c2cd8893582f063
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Sat Feb 1 19:08:27 2014 -0500

    window: Fix build once more
    
    Bad syntax here...

 src/core/window.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/core/window.c b/src/core/window.c
index 69f2887..83ca163 100644
--- a/src/core/window.c
+++ b/src/core/window.c
@@ -773,7 +773,7 @@ maybe_filter_xwindow (MetaDisplay       *display,
 
 static gboolean
 is_our_xwindow (MetaDisplay       *display,
-                MetaScreen        *screen
+                MetaScreen        *screen,
                 Window             xwindow,
                 XWindowAttributes *attrs)
 {