First step in the Vim 7.3 branch.  Changed version numbers.
diff --git a/README_amibin.txt b/README_amibin.txt
index 8c3ce0b..2331424 100644
--- a/README_amibin.txt
+++ b/README_amibin.txt
@@ -1,4 +1,4 @@
-README_amibin.txt for version 7.2 of Vim: Vi IMproved.
+README_amibin.txt for version 7.3a of Vim: Vi IMproved.
 
 See "README.txt" for general information about Vim.
 See "README_ami.txt" for installation instructions for the Amiga.