look for /usr/local/propellor/.git to know if it's fully deployed
look for /usr/local/propellor/.git to know if it's fully deployed

When propellor is deployed by uploading the binary, there's no git repo, so
each spin needs to re-upload it to get any config changes. This should be
rare since this is only intended to be used when taking over a host and
getting it properly set up from source, but it still needs to be supported.

ArchiveTeam/glowing-computing-machine,abailly/infra-test