Update runtime files.
diff --git a/runtime/doc/os_win32.txt b/runtime/doc/os_win32.txt
index 663087b..98b37d0 100644
--- a/runtime/doc/os_win32.txt
+++ b/runtime/doc/os_win32.txt
@@ -1,4 +1,4 @@
-*os_win32.txt*  For Vim version 8.0.  Last change: 2016 Oct 12
+*os_win32.txt*  For Vim version 8.0.  Last change: 2017 Mar 21
 
 
 		  VIM REFERENCE MANUAL    by George Reilly