Update runtime files.
diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
index 4e94902..385f0bb 100644
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -1,4 +1,4 @@
-*options.txt*	For Vim version 8.0.  Last change: 2017 Jan 15
+*options.txt*	For Vim version 8.0.  Last change: 2017 Jan 28
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar