First step in the Vim 7.3 branch.  Changed version numbers.
diff --git a/runtime/doc/gui.txt b/runtime/doc/gui.txt
index 6243e10..73663e0 100644
--- a/runtime/doc/gui.txt
+++ b/runtime/doc/gui.txt
@@ -1,4 +1,4 @@
-*gui.txt*       For Vim version 7.2.  Last change: 2010 May 14
+*gui.txt*       For Vim version 7.3a.  Last change: 2010 May 14
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar