Update runtime files.
diff --git a/runtime/doc/usr_21.txt b/runtime/doc/usr_21.txt
index 40388ee..513dad0 100644
--- a/runtime/doc/usr_21.txt
+++ b/runtime/doc/usr_21.txt
@@ -496,4 +496,4 @@
 
 Next chapter: |usr_22.txt|  Finding the file to edit
 
-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: