fixing package comment of v1

staging/src/k8s.io/apimachinery/pkg/apis/meta/v1/types.go

@@ -14,7 +14,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-// Package unversioned contains API types that are common to all versions.
+// Package v1 contains API types that are common to all versions.
 //
 // The package contains two categories of types:
 // - external (serialized) types that lack their own version (e.g TypeMeta)