57641f3b9a
the nsupdate.info zone is configured to allow updating test.nsupdate.info with a non-secret key used for the tests. we also have a test that tries to update another host with that key and checks that this fails. change the tests so they only use test.nsupdate.info (if possible). single-host update secrets need a Domain record for the fqdn of this single host, the fqdn is tried first, before it tries the origin zone.