provision/docker: another test fix
provision/docker: another test fix

This is the last, I think. I can ensure it compiles, but I can't run
this on Darwin.

guilhermebr/tsuru,ArxdSilva/tsuru,4eek/tsuru,ggarnier/tsuru,guilhermebr/tsuru,mderaldo/tsuru,hcxiong/tsuru,RichardKnop/tsuru,cgvarela/tsuru,guilhermebr/tsuru,gwmoura/tsuru,cgvarela/tsuru,cezarsa/tsuru,Endika/tsuru,cgvarela/tsuru,firebitsbr/tsuru,4eek/tsuru,firebitsbr/tsuru,gciotta/tsuru,tuxmonteiro/tsuru,jblancett/tsuru,kgrvamsi/tsuru,gwmoura/tsuru,ggarnier/tsuru,ggarnier/tsuru,firebitsbr/tsuru,tuxmonteiro/tsuru,kgrvamsi/tsuru,cezarsa/tsuru,kgrvamsi/tsuru,ggarnier/tsuru,tsuru/tsuru,ArxdSilva/tsuru,tsuru/tsuru,mderaldo/tsuru,mderaldo/tsuru,gciotta/tsuru,gwmoura/tsuru,jblancett/tsuru,guilhermebr/tsuru,cezarsa/tsuru,hcxiong/tsuru,4eek/tsuru,gciotta/tsuru,jblancett/tsuru,tsuru/tsuru,hcxiong/tsuru,RichardKnop/tsuru,Endika/tsuru,cezarsa/tsuru,ArxdSilva/tsuru,tuxmonteiro/tsuru,RichardKnop/tsuru,Endika/tsuru,ArxdSilva/tsuru,tsuru/tsuru