Vim 7.3a -> 7.3b.
diff --git a/README_extra.txt b/README_extra.txt
index 613616d..d74bf34 100644
--- a/README_extra.txt
+++ b/README_extra.txt
@@ -1,4 +1,4 @@
-README_extra.txt for version 7.3a of Vim: Vi IMproved.
+README_extra.txt for version 7.3b of Vim: Vi IMproved.
 
 The extra archive of Vim is to be used in combination with the source archive
 (vim-7.2-src.tar.gz).  The extra archive is useless without it.