Update runtime files.
diff --git a/runtime/doc/usr_06.txt b/runtime/doc/usr_06.txt
index e2750ae..e52d110 100644
--- a/runtime/doc/usr_06.txt
+++ b/runtime/doc/usr_06.txt
@@ -277,4 +277,4 @@
 
 Next chapter: |usr_07.txt|  Editing more than one file
 
-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: