Meta/cook: update boilerplate

cook

@@ -383,8 +383,10 @@ Here are the topics that have been cooking in my tree.  Commits
 prefixed with '+' are in 'next' (being in 'next' is a sign that a
 topic is stable enough to be used and are candidate to be in a future
 release).  Commits prefixed with '-' are only in 'seen', and aren't
-considered "accepted" at all.  A topic without enough support may be
-discarded after a long period of no activity.
+considered "accepted" at all and may be annotated with an URL to a
+message that raises issues but they are no means exhaustive.  A
+topic without enough support may be discarded after a long period of
+no activity.
 
 Copies of the source code to Git live in many repositories, and the
 following is a list of the ones I push into or their mirrors.  Some