--- a/airport_gui.c	Sun Jul 24 13:55:39 2005 +0000
+++ b/airport_gui.c	Sun Jul 24 14:12:37 2005 +0000
@@ -1,3 +1,5 @@
+/* $Id$ */
+
 #include "stdafx.h"
 #include "openttd.h"
 #include "table/sprites.h"