Update runtime files.
diff --git a/runtime/doc/testing.txt b/runtime/doc/testing.txt
index f343e86..f48984c 100644
--- a/runtime/doc/testing.txt
+++ b/runtime/doc/testing.txt
@@ -1,4 +1,4 @@
-*testing.txt*	For Vim version 8.2.  Last change: 2019 Sep 08
+*testing.txt*	For Vim version 8.2.  Last change: 2020 Feb 08
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar