Update runtime files
diff --git a/runtime/doc/index.txt b/runtime/doc/index.txt
index 8c114a2..4af59c6 100644
--- a/runtime/doc/index.txt
+++ b/runtime/doc/index.txt
@@ -1,4 +1,4 @@
-*index.txt*     For Vim version 8.2.  Last change: 2021 Aug 27
+*index.txt*     For Vim version 8.2.  Last change: 2021 Aug 31
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar