Automatic merge from submit-queue Improve Service controller's code coverage a little bit **What this PR does / why we need it**: Improves the code coverage for Service Controller Before ``` go test --cover ./pkg/controller/service ok k8s.io/kubernetes/pkg/controller/service 0.101s coverage: 23.4% of statements ``` After ``` go test --cover ./pkg/controller/service/ ok k8s.io/kubernetes/pkg/controller/service 0.094s coverage: 62.0% of statements ``` **Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes # More unit testing **Special notes for your reviewer**: **Release note**: ```release-note NONE ```