Fix more 'cpo' issues in runtime files.
diff --git a/runtime/macros/less.vim b/runtime/macros/less.vim
index 4888ed2..6ae5ebc 100644
--- a/runtime/macros/less.vim
+++ b/runtime/macros/less.vim
@@ -1,6 +1,6 @@
 " Vim script to work like "less"
 " Maintainer:	Bram Moolenaar <Bram@vim.org>
-" Last Change:	2006 Dec 05
+" Last Change:	2012 May 18
 
 " Avoid loading this file twice, allow the user to define his own script.
 if exists("loaded_less")