Support repos that use the .git-file mechanism.
Support repos that use the .git-file mechanism.

beni55/GitPython,gitpython-developers/GitPython,manasdk/GitPython,avinassh/GitPython,hvnsweeting/GitPython,dpursehouse/GitPython,gitpython-developers/gitpython,h4ck3rm1k3/GitPython,bwrsandman/GitPython,expobrain/GitPython,expobrain/GitPython,beni55/GitPython,ghtdak/GitPython,nvie/GitPython,StyXman/GitPython,pengshp/GitPython,jeblair/GitPython,roidelapluie/GitPython,cdht/GitPython,jeblair/GitPython,pengshp/GitPython,zsjohny/GitPython,zsjohny/GitPython,avinassh/GitPython,bwrsandman/GitPython,ghtdak/GitPython,nvie/GitPython,h4ck3rm1k3/GitPython,bwrsandman/GitPython,zsjohny/GitPython,gitpython-developers/gitpython,StyXman/GitPython,breavo/GitPython,avinassh/GitPython,gitpython-developers/GitPython,manasdk/GitPython,dpursehouse/GitPython,StyXman/GitPython,roidelapluie/GitPython,cdht/GitPython,hvnsweeting/GitPython,breavo/GitPython,pengshp/GitPython,cdht/GitPython