iaas/dockermachine: fix unconvert linter errors
iaas/dockermachine: fix unconvert linter errors

ggarnier/tsuru,guilhermebr/tsuru,cezarsa/tsuru,cezarsa/tsuru,guilhermebr/tsuru,ArxdSilva/tsuru,cezarsa/tsuru,tsuru/tsuru,ggarnier/tsuru,tsuru/tsuru,tsuru/tsuru,guilhermebr/tsuru,ArxdSilva/tsuru,ggarnier/tsuru,cezarsa/tsuru,ArxdSilva/tsuru,ArxdSilva/tsuru,guilhermebr/tsuru,ggarnier/tsuru,tsuru/tsuru