fix golint failures of pkg/registry/rbac/role

hack/.golint_failures

@@ -293,7 +293,6 @@ pkg/registry/rbac/clusterrolebinding
 pkg/registry/rbac/clusterrolebinding/policybased
 pkg/registry/rbac/reconciliation
 pkg/registry/rbac/rest
-pkg/registry/rbac/role
 pkg/registry/rbac/role/policybased
 pkg/registry/rbac/rolebinding
 pkg/registry/rbac/rolebinding/policybased

pkg/registry/rbac/role/doc.go

@@ -14,6 +14,6 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-// Package certificates provides Registry interface and its RESTStorage
+// Package role provides Registry interface and its RESTStorage
 // implementation for storing Role objects.
 package role // import "k8s.io/kubernetes/pkg/registry/rbac/role"

pkg/registry/rbac/role/registry.go

@@ -61,6 +61,7 @@ type AuthorizerAdapter struct {
 	Registry Registry
 }
 
+// GetRole returns the corresponding Role by name in specified namespace
 func (a AuthorizerAdapter) GetRole(namespace, name string) (*rbacv1.Role, error) {
 	return a.Registry.GetRole(genericapirequest.WithNamespace(genericapirequest.NewContext(), namespace), name, &metav1.GetOptions{})
 }

pkg/registry/rbac/role/strategy.go

@@ -34,7 +34,7 @@ type strategy struct {
 	names.NameGenerator
 }
 
-// strategy is the default logic that applies when creating and updating
+// Strategy is the default logic that applies when creating and updating
 // Role objects.
 var Strategy = strategy{legacyscheme.Scheme, names.SimpleNameGenerator}