First step in the Vim 7.3 branch.  Changed version numbers.
diff --git a/runtime/doc/usr_28.txt b/runtime/doc/usr_28.txt
index 912f22b..93e36f8 100644
--- a/runtime/doc/usr_28.txt
+++ b/runtime/doc/usr_28.txt
@@ -1,4 +1,4 @@
-*usr_28.txt*	For Vim version 7.2.  Last change: 2008 Jun 14
+*usr_28.txt*	For Vim version 7.3a.  Last change: 2008 Jun 14
 
 		     VIM USER MANUAL - by Bram Moolenaar