Update runtime files
diff --git a/runtime/doc/if_lua.txt b/runtime/doc/if_lua.txt
index b7ccb04..48b42e6 100644
--- a/runtime/doc/if_lua.txt
+++ b/runtime/doc/if_lua.txt
@@ -1,4 +1,4 @@
-*if_lua.txt*    For Vim version 8.2.  Last change: 2020 Jun 28
+*if_lua.txt*    For Vim version 8.2.  Last change: 2021 Apr 07
 
 
 		  VIM REFERENCE MANUAL    by Luis Carvalho