First step in the Vim 7.3 branch.  Changed version numbers.
diff --git a/runtime/doc/pi_vimball.txt b/runtime/doc/pi_vimball.txt
index a1a3254..4928d11 100644
--- a/runtime/doc/pi_vimball.txt
+++ b/runtime/doc/pi_vimball.txt
@@ -1,4 +1,4 @@
-*pi_vimball.txt*	For Vim version 7.2.  Last change: 2010 Apr 12
+*pi_vimball.txt*	For Vim version 7.3a.  Last change: 2010 Apr 12
 
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