tests: glob away fqdn wherever we print it These localhost instances are actually from a getfqdn call, which means on some of my test systems it comes out as localhost.localdomain or 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa. I'm tired of this, so let's glob it away. Differential Revision: https://phab.mercurial-scm.org/D3251