Update runtime files
diff --git a/runtime/defaults.vim b/runtime/defaults.vim
index 9b46c8e..4a44ebf 100644
--- a/runtime/defaults.vim
+++ b/runtime/defaults.vim
@@ -1,7 +1,7 @@
 " The default vimrc file.
 "
 " Maintainer:	Bram Moolenaar <Bram@vim.org>
-" Last change:	2020 Sep 30
+" Last change:	2021 Nov 17
 "
 " This is loaded if no vimrc file was found.
 " Except when Vim is run with "-u NONE" or "-C".
@@ -96,7 +96,7 @@
   filetype plugin indent on
 
   " Put these in an autocmd group, so that you can revert them with:
-  " ":augroup vimStartup | au! | augroup END"
+  " ":augroup vimStartup | exe 'au!' | augroup END"
   augroup vimStartup
     au!
 
@@ -114,9 +114,10 @@
   " Quite a few people accidentally type "q:" instead of ":q" and get confused
   " by the command line window.  Give a hint about how to get out.
   " If you don't like this you can put this in your vimrc:
-  " ":augroup vimHints | au! | augroup END"
+  " ":augroup vimHints | exe 'au!' | augroup END"
   augroup vimHints
-    autocmd! CmdwinEnter *
+    au!
+    autocmd CmdwinEnter *
 	  \ echohl Todo | 
 	  \ echo 'You discovered the command-line window! You can close it with ":q".' |
 	  \ echohl None