provision: ignore empty fields when saving tsuru yaml data
provision: ignore empty fields when saving tsuru yaml data

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