First step in the Vim 7.3 branch.  Changed version numbers.
diff --git a/runtime/doc/version4.txt b/runtime/doc/version4.txt
index 82a1bbe..d9b9d0e 100644
--- a/runtime/doc/version4.txt
+++ b/runtime/doc/version4.txt
@@ -1,4 +1,4 @@
-*version4.txt*  For Vim version 7.2.  Last change: 2006 Apr 24
+*version4.txt*  For Vim version 7.3a.  Last change: 2006 Apr 24
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar