Update runtime files.
diff --git a/runtime/doc/sign.txt b/runtime/doc/sign.txt
index 57bd0a7..b415b3e 100644
--- a/runtime/doc/sign.txt
+++ b/runtime/doc/sign.txt
@@ -1,4 +1,4 @@
-*sign.txt* For Vim version 8.1. Last change: 2019 Nov 12
+*sign.txt* For Vim version 8.1. Last change: 2019 Nov 30
VIM REFERENCE MANUAL by Gordon Prieur
@@ -71,8 +71,6 @@
sign group allows Vim plugins to use unique signs without interfering with
other plugins using signs.
-The group name "popupmenu" is used by popup windows where 'cursorline' is set.
-
To place a sign in a popup window the group name must start with "PopUp".
Other signs will not show in a popup window. The group name "PopUpMenu" is
used by popup windows where 'cursorline' is set.