Update runtime files.
diff --git a/runtime/doc/help.txt b/runtime/doc/help.txt
index 4c6567b..c8ff75a 100644
--- a/runtime/doc/help.txt
+++ b/runtime/doc/help.txt
@@ -1,4 +1,4 @@
-*help.txt*	For Vim version 8.1.  Last change: 2019 Jan 01
+*help.txt*	For Vim version 8.1.  Last change: 2019 Jan 17
 
 			VIM - main help file
 									 k