Update runtime files.
diff --git a/runtime/doc/popup.txt b/runtime/doc/popup.txt
index 005b57f..6d70cec 100644
--- a/runtime/doc/popup.txt
+++ b/runtime/doc/popup.txt
@@ -1,4 +1,4 @@
-*popup.txt*  For Vim version 8.2.  Last change: 2020 Nov 07
+*popup.txt*  For Vim version 8.2.  Last change: 2021 Jan 21
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar