Update runtime files
diff --git a/runtime/menu.vim b/runtime/menu.vim
index e176524..5f4e395 100644
--- a/runtime/menu.vim
+++ b/runtime/menu.vim
@@ -2,7 +2,7 @@
 " You can also use this as a start for your own set of menus.
 "
 " Maintainer:	Bram Moolenaar <Bram@vim.org>
-" Last Change:	2020 Sep 28
+" Last Change:	2021 Dec 22
 
 " Note that ":an" (short for ":anoremenu") is often used to make a menu work
 " in all modes and avoid side effects from mappings defined by the user.
@@ -717,6 +717,11 @@
     return 0
   endif
 
+  " no name with control characters
+  if a:name =~ '[\x01-\x1f]'
+    return 0
+  endif
+
   " no special buffer, such as terminal or popup
   let buftype = getbufvar(a:num, '&buftype')
   if buftype != '' && buftype != 'nofile' && buftype != 'nowrite'