Update runtime files.
diff --git a/runtime/doc/usr_90.txt b/runtime/doc/usr_90.txt
index 5ecba60..a5b4292 100644
--- a/runtime/doc/usr_90.txt
+++ b/runtime/doc/usr_90.txt
@@ -495,4 +495,4 @@
 
 Table of contents: |usr_toc.txt|
 
-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: