Bug#991423: xmltooling: autopkgtest regression since mid-July 2021

[wferi]

Control: forwarded -1 https://issues.shibboleth.net/jira/browse/CPPXT-151

Hi Graham,

Thanks for the report!
I think it's just some fallout from the upstream wiki migration.
Let's see if they can provide a quick fix.
-- 
Regards,
Feri.