Update runtime files
diff --git a/runtime/doc/builtin.txt b/runtime/doc/builtin.txt
index 9029685..3850b38 100644
--- a/runtime/doc/builtin.txt
+++ b/runtime/doc/builtin.txt
@@ -1,4 +1,4 @@
-*builtin.txt*	For Vim version 8.2.  Last change: 2022 Jan 08
+*builtin.txt*	For Vim version 8.2.  Last change: 2022 Jan 16
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar