Synch with Gnus.

[elisp/gnus.git-] / lisp / nnmail.el

diff --git a/lisp/nnmail.el b/lisp/nnmail.el
index 7255b74..910c667 100644 (file)
--- a/lisp/nnmail.el
+++ b/lisp/nnmail.el
@@ -189,7 +189,8 @@ The return value should be `delete' or a group name (a string)."
                   string))
 
 (defcustom nnmail-cache-accepted-message-ids nil
-  "If non-nil, put Message-IDs of Gcc'd articles into the duplicate cache."
+  "If non-nil, put Message-IDs of Gcc'd articles into the duplicate cache.
+If non-nil, also update the cache when copy or move articles."
   :group 'nnmail
   :type 'boolean)