First step in the Vim 7.3 branch.  Changed version numbers.
diff --git a/runtime/doc/usr_04.txt b/runtime/doc/usr_04.txt
index a3ab0d6..b3ba894 100644
--- a/runtime/doc/usr_04.txt
+++ b/runtime/doc/usr_04.txt
@@ -1,4 +1,4 @@
-*usr_04.txt*	For Vim version 7.2.  Last change: 2008 Sep 06
+*usr_04.txt*	For Vim version 7.3a.  Last change: 2008 Sep 06
 
 		     VIM USER MANUAL - by Bram Moolenaar