Update runtime files.
diff --git a/runtime/doc/usr_10.txt b/runtime/doc/usr_10.txt
index 46f7677..d551d11 100644
--- a/runtime/doc/usr_10.txt
+++ b/runtime/doc/usr_10.txt
@@ -821,4 +821,4 @@
 
 Next chapter: |usr_11.txt|  Recovering from a crash
 
-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: