*: Remove comment tags in GoDoc

Adding blank line between comment tag and package name in doc.go. So
that the comment tags such as '+k8s:deepcopy-gen=package' do not show up
in GoDoc.

pkg/apis/scheduling/v1beta1/doc.go

@@ -19,4 +19,5 @@ limitations under the License.
 // +groupName=scheduling.k8s.io
 // +k8s:defaulter-gen=TypeMeta
 // +k8s:defaulter-gen-input=../../../../vendor/k8s.io/api/scheduling/v1beta1
+
 package v1beta1 // import "k8s.io/kubernetes/pkg/apis/scheduling/v1beta1"