Searching for `http://www.roundup-tracker.org/cgi-bin/moin.cgi`
in the tracker shows that we have 20 issues affected, we could just add
an additional message there.

There is just https://wikibeta.roundup-tracker.org/MessagesAsMbox
where it appears as string in the wiki pages.

Given that we only have those places I think we should not
take the time to do and maintain a script for the sourceforge server.
People will use a search engine and find the new wiki if they really
need that elder information.