providers/docker: execute the proxied SSH in a shell
providers/docker: execute the proxied SSH in a shell

jhoblitt/vagrant,kalabiyau/vagrant,patrys/vagrant,rivy/vagrant,BlakeMesdag/vagrant,h4ck3rm1k3/vagrant,PatOShea/vagrant,wkolean/vagrant,PatrickLang/vagrant,gitebra/vagrant,jberends/vagrant,nickryand/vagrant,lukebakken/vagrant,otagi/vagrant,mwarren/vagrant,doy/vagrant,shtouff/vagrant,taliesins/vagrant,darkn3rd/vagrant,justincampbell/vagrant,myrjola/vagrant,dhoer/vagrant,apertoso/vagrant,mitchellh/vagrant,jtopper/vagrant,blueyed/vagrant,Chhed13/vagrant,ianmiell/vagrant,signed8bit/vagrant,bshurts/vagrant,tjanez/vagrant,bheuvel/vagrant,kamigerami/vagrant,bheuvel/vagrant,otagi/vagrant,philoserf/vagrant,aaam/vagrant,PatrickLang/vagrant,ianmiell/vagrant,mwarren/vagrant,jberends/vagrant,PatrickLang/vagrant,otagi/vagrant,chrisroberts/vagrant,kalabiyau/vagrant,mkuzmin/vagrant,clinstid/vagrant,fnewberg/vagrant,jmanero/vagrant,PatrickLang/vagrant,juiceinc/vagrant,denisbr/vagrant,h4ck3rm1k3/vagrant,lonniev/vagrant,jmanero/vagrant,sideci-sample/sideci-sample-vagrant,myrjola/vagrant,aneeshusa/vagrant,lonniev/vagrant,tbriggs-curse/vagrant,crashlytics/vagrant,tbarrongh/vagrant,mwrock/vagrant,ArloL/vagrant,gitebra/vagrant,tbriggs-curse/vagrant,carlosefr/vagrant,wangfakang/vagrant,tknerr/vagrant,Endika/vagrant,ArloL/vagrant,Avira/vagrant,aaam/vagrant,teotihuacanada/vagrant,gajdaw/vagrant,rivy/vagrant,miguel250/vagrant,iNecas/vagrant,denisbr/vagrant,PatOShea/vagrant,jean/vagrant,sax/vagrant,mpoeter/vagrant,pwnall/vagrant,lonniev/vagrant,dustymabe/vagrant,TheBigBear/vagrant,evverx/vagrant,senglin/vagrant,tschortsch/vagrant,Sgoettschkes/vagrant,tbarrongh/vagrant,dharmab/vagrant,jmanero/vagrant,johntron/vagrant,modulexcite/vagrant,shtouff/vagrant,jfchevrette/vagrant,muhanadra/vagrant,Sgoettschkes/vagrant,chrisvire/vagrant,tjanez/vagrant,jtopper/vagrant,channui/vagrant,dustymabe/vagrant,pwnall/vagrant,sideci-sample/sideci-sample-vagrant,teotihuacanada/vagrant,sni/vagrant,muhanadra/vagrant,mkuzmin/vagrant,dhoer/vagrant,teotihuacanada/vagrant,philwrenn/vagrant,gajdaw/vagrant,Endika/vagrant,mitchellh/vagrant,MiLk/vagrant,benizi/vagrant,loren-osborn/vagrant,sni/vagrant,wkolean/vagrant,gajdaw/vagrant,evverx/vagrant,justincampbell/vagrant,aneeshusa/vagrant,kamazee/vagrant,carlosefr/vagrant,mkuzmin/vagrant,wangfakang/vagrant,patrys/vagrant,zsjohny/vagrant,obnoxxx/vagrant,ianmiell/vagrant,jfchevrette/vagrant,gpkfr/vagrant,jtopper/vagrant,aneeshusa/vagrant,gbarberi/vagrant,lukebakken/vagrant,miguel250/vagrant,carlosefr/vagrant,doy/vagrant,ferventcoder/vagrant,janek-warchol/vagrant,tjanez/vagrant,benh57/vagrant,mwrock/vagrant,dharmab/vagrant,kamigerami/vagrant,genome21/vagrant,bdwyertech/vagrant,bryson/vagrant,kamazee/vagrant,tomfanning/vagrant,nickryand/vagrant,krig/vagrant,Sgoettschkes/vagrant,darkn3rd/vagrant,philoserf/vagrant,dharmab/vagrant,invernizzi-at-google/vagrant,bheuvel/vagrant,mkuzmin/vagrant,benh57/vagrant,benizi/vagrant,wangfakang/vagrant,juiceinc/vagrant,legal90/vagrant,sax/vagrant,channui/vagrant,PatOShea/vagrant,sideci-sample/sideci-sample-vagrant,dustymabe/vagrant,aaam/vagrant,apertoso/vagrant,gpkfr/vagrant,gbarberi/vagrant,kamigerami/vagrant,Chhunlong/vagrant,bdwyertech/vagrant,philwrenn/vagrant,tbriggs-curse/vagrant,tomfanning/vagrant,loren-osborn/vagrant,wkolean/vagrant,krig/vagrant,lonniev/vagrant,justincampbell/vagrant,darkn3rd/vagrant,cgvarela/vagrant,ArloL/vagrant,apertoso/vagrant,stephancom/vagrant,doy/vagrant,muhanadra/vagrant,miguel250/vagrant,johntron/vagrant,rivy/vagrant,invernizzi-at-google/vagrant,bshurts/vagrant,stephancom/vagrant,mwarren/vagrant,Chhunlong/vagrant,chrisroberts/vagrant,johntron/vagrant,miguel250/vagrant,bshurts/vagrant,tknerr/vagrant,myrjola/vagrant,juiceinc/vagrant,genome21/vagrant,jberends/vagrant,chrisvire/vagrant,dharmab/vagrant,mitchellh/vagrant,marxarelli/vagrant,iNecas/vagrant,philoserf/vagrant,sni/vagrant,MiLk/vagrant,dustymabe/vagrant,BlakeMesdag/vagrant,benh57/vagrant,justincampbell/vagrant,tomfanning/vagrant,TheBigBear/vagrant,Chhed13/vagrant,ferventcoder/vagrant,mpoeter/vagrant,legal90/vagrant,jfchevrette/vagrant,Endika/vagrant,darkn3rd/vagrant,pwnall/vagrant,doy/vagrant,rivy/vagrant,cgvarela/vagrant,jmanero/vagrant,jkburges/vagrant,MiLk/vagrant,zsjohny/vagrant,janek-warchol/vagrant,taliesins/vagrant,lukebakken/vagrant,jtopper/vagrant,crashlytics/vagrant,Chhed13/vagrant,tbriggs-curse/vagrant,myrjola/vagrant,chrisroberts/vagrant,PatOShea/vagrant,jhoblitt/vagrant,mwrock/vagrant,chrisroberts/vagrant,benh57/vagrant,ferventcoder/vagrant,Chhed13/vagrant,teotihuacanada/vagrant,bheuvel/vagrant,bdwyertech/vagrant,carlosefr/vagrant,tjanez/vagrant,stephancom/vagrant,wkolean/vagrant,philoserf/vagrant,philwrenn/vagrant,tschortsch/vagrant,h4ck3rm1k3/vagrant,loren-osborn/vagrant,fnewberg/vagrant,aaam/vagrant,taliesins/vagrant,jean/vagrant,mitchellh/vagrant,tknerr/vagrant,jkburges/vagrant,senglin/vagrant,vamegh/vagrant,mpoeter/vagrant,tknerr/vagrant,cgvarela/vagrant,johntron/vagrant,modulexcite/vagrant,krig/vagrant,invernizzi-at-google/vagrant,legal90/vagrant,mpoeter/vagrant,gbarberi/vagrant,modulexcite/vagrant,h4ck3rm1k3/vagrant,TheBigBear/vagrant,vamegh/vagrant,pwnall/vagrant,cgvarela/vagrant,mwrock/vagrant,marxarelli/vagrant,petems/vagrant,TheBigBear/vagrant,jfchevrette/vagrant,bryson/vagrant,tschortsch/vagrant,theist/vagrant,fnewberg/vagrant,fnewberg/vagrant,theist/vagrant,modulexcite/vagrant,stephancom/vagrant,crashlytics/vagrant,chrisvire/vagrant,patrys/vagrant,jberends/vagrant,denisbr/vagrant,BlakeMesdag/vagrant,shtouff/vagrant,apertoso/vagrant,invernizzi-at-google/vagrant,juiceinc/vagrant,evverx/vagrant,Chhunlong/vagrant,senglin/vagrant,blueyed/vagrant,jhoblitt/vagrant,marxarelli/vagrant,sax/vagrant,channui/vagrant,denisbr/vagrant,Sgoettschkes/vagrant,jhoblitt/vagrant,benizi/vagrant,gitebra/vagrant,tschortsch/vagrant,ArloL/vagrant,signed8bit/vagrant,kalabiyau/vagrant,dhoer/vagrant,loren-osborn/vagrant,Avira/vagrant,legal90/vagrant,nickryand/vagrant,wangfakang/vagrant,lukebakken/vagrant,petems/vagrant,vamegh/vagrant,zsjohny/vagrant,genome21/vagrant,signed8bit/vagrant,jean/vagrant,obnoxxx/vagrant,shtouff/vagrant,jean/vagrant,petems/vagrant,kamigerami/vagrant,ferventcoder/vagrant,iNecas/vagrant,zsjohny/vagrant,Avira/vagrant,gpkfr/vagrant,senglin/vagrant,clinstid/vagrant,kalabiyau/vagrant,crashlytics/vagrant,tomfanning/vagrant,jkburges/vagrant,gbarberi/vagrant,gpkfr/vagrant,sni/vagrant,ianmiell/vagrant,vamegh/vagrant,janek-warchol/vagrant,bshurts/vagrant,otagi/vagrant,sax/vagrant,marxarelli/vagrant,nickryand/vagrant,genome21/vagrant,janek-warchol/vagrant,blueyed/vagrant,Endika/vagrant,theist/vagrant,patrys/vagrant,aneeshusa/vagrant,kamazee/vagrant,muhanadra/vagrant,mwarren/vagrant,bryson/vagrant,tbarrongh/vagrant,krig/vagrant,taliesins/vagrant,benizi/vagrant,kamazee/vagrant,signed8bit/vagrant,bdwyertech/vagrant,philwrenn/vagrant,Chhunlong/vagrant,bryson/vagrant,tbarrongh/vagrant,dhoer/vagrant,Avira/vagrant,obnoxxx/vagrant,gitebra/vagrant,theist/vagrant,petems/vagrant,clinstid/vagrant,chrisvire/vagrant,blueyed/vagrant,jkburges/vagrant