Comment 0 for bug 1820888

This is part of the reason why the autopkgtes installing all security updates is failing for cosmic with 1.10ubuntu1:
https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-disco/disco/amd64/u/unattended-upgrades/20190318_182031_fe4fe@/log.gz
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Checking: libnss-systemd ([<Origin component:'main' archive:'cosmic-updates' origin:'Ubuntu' label:'Ubuntu' site:'archive.ubuntu.com' isTrusted:True>])
pkg libsystemd0 not in allowed origin
sanity check failed
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