Update runtime files.
diff --git a/runtime/doc/gui.txt b/runtime/doc/gui.txt
index 6b46c9f..70c1a68 100644
--- a/runtime/doc/gui.txt
+++ b/runtime/doc/gui.txt
@@ -1,4 +1,4 @@
-*gui.txt*       For Vim version 7.3.  Last change: 2011 Jul 22
+*gui.txt*       For Vim version 7.3.  Last change: 2013 Jun 12
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar