Update timestamps for recently changed help files.
diff --git a/runtime/doc/intro.txt b/runtime/doc/intro.txt
index d4efafe..6679a4f 100644
--- a/runtime/doc/intro.txt
+++ b/runtime/doc/intro.txt
@@ -1,4 +1,4 @@
-*intro.txt*     For Vim version 7.3b.  Last change: 2009 Apr 21
+*intro.txt*     For Vim version 7.3b.  Last change: 2010 Jul 20
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar