First step in the Vim 7.3 branch.  Changed version numbers.
diff --git a/src/vim16.def b/src/vim16.def
index 7b41551..a24adbf 100644
--- a/src/vim16.def
+++ b/src/vim16.def
@@ -1,5 +1,5 @@
 CODE PRELOAD EXECUTEONLY
 DATA MULTIPLE SHARED
-DESCRIPTION 'Vim 7.2'
+DESCRIPTION 'Vim 7.3a'
 STACKSIZE 16000
 HEAPSIZE 10000