Update runtime files.
diff --git a/runtime/doc/pi_tar.txt b/runtime/doc/pi_tar.txt
index 7a6faf1..f39e0c4 100644
--- a/runtime/doc/pi_tar.txt
+++ b/runtime/doc/pi_tar.txt
@@ -148,4 +148,4 @@
    v1 (original)   * Michael Toren (see http://michael.toren.net/code/)
 
 ==============================================================================
-vim:tw=78:ts=8:ft=help
+vim:tw=78:ts=8:noet:ft=help