Update runtime files.
diff --git a/runtime/doc/usr_09.txt b/runtime/doc/usr_09.txt
index 1bc7aff..a6f068d 100644
--- a/runtime/doc/usr_09.txt
+++ b/runtime/doc/usr_09.txt
@@ -287,4 +287,4 @@
 
 Next chapter: |usr_10.txt|  Making big changes
 
-Copyright: see |manual-copyright|  vim:tw=78:ts=8:ft=help:norl:
+Copyright: see |manual-copyright|  vim:tw=78:ts=8:noet:ft=help:norl: