Cleanup git_fetcher_spec to never shellout
Cleanup git_fetcher_spec to never shellout

3ofcoins/chef-omnibus,DataDog/omnibus-ruby,szechyjs/omnibus,ashhher3/omnibus,chef/omnibus,higanworks/omnibus,lvfeng1130/omnibus,adamleff/omnibus,lvfeng1130/omnibus,lvfeng1130/omnibus,strangelittlemonkey/omnibus,sh9189/omnibus,servebox/omnibus,mattray/omnibus,Scalr/omnibus,jamesn/omnibus,mattray/omnibus,chef/omnibus,3ofcoins/chef-omnibus,ashhher3/omnibus,pskrz/omnibus,szechyjs/omnibus,intfrr/omnibus,ashhher3/omnibus,strangelittlemonkey/omnibus,hugosato/omnibus,szechyjs/omnibus,rhass/omnibus,strangelittlemonkey/omnibus,intfrr/omnibus,adamleff/omnibus,intfrr/omnibus,rhass/omnibus,DataDog/omnibus-ruby,Altiscale/omnibus,pskrz/omnibus,rapid7/omnibus,sh9189/omnibus,3ofcoins/chef-omnibus,servebox/omnibus,rapid7/omnibus,rapid7/omnibus,jamesn/omnibus,DataDog/omnibus-ruby,rhass/omnibus,jamesn/omnibus,Scalr/omnibus,higanworks/omnibus,pskrz/omnibus,mattray/omnibus,higanworks/omnibus,hugosato/omnibus,chef/omnibus,hugosato/omnibus,Altiscale/omnibus,adamleff/omnibus,Scalr/omnibus,servebox/omnibus,sh9189/omnibus,Altiscale/omnibus