Fix typo

Author: gogolok

pkg/leaderelection/doc.go

@@ -15,7 +15,7 @@ limitations under the License.
 */
 
 /*
-Package leaderelection contains a constructors for a leader election resource lock.
+Package leaderelection contains a constructor for a leader election resource lock.
 This is used to ensure that multiple copies of a controller manager can be run with
 only one active set of controllers, for active-passive HA.