Update runtime files
diff --git a/runtime/doc/testing.txt b/runtime/doc/testing.txt
index 3ff1450..0459aa3 100644
--- a/runtime/doc/testing.txt
+++ b/runtime/doc/testing.txt
@@ -1,4 +1,4 @@
-*testing.txt*	For Vim version 8.2.  Last change: 2021 Dec 11
+*testing.txt*	For Vim version 8.2.  Last change: 2022 Jan 13
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar