Address PR comments.

Author: mccheah

common/network-shuffle/src/main/java/org/apache/spark/network/shuffle/kubernetes/KubernetesExternalShuffleClientImpl.java

@@ -43,7 +43,7 @@ public class KubernetesExternalShuffleClientImpl
           .getLogger(KubernetesExternalShuffleClientImpl.class);
 
   /**
-   * Creates an Kubernetes external shuffle client that wraps the {@link ExternalShuffleClient}.
+   * Creates a Kubernetes external shuffle client that wraps the {@link ExternalShuffleClient}.
    * Please refer to docs on {@link ExternalShuffleClient} for more information.
    */
   public KubernetesExternalShuffleClientImpl(
@@ -74,9 +74,4 @@ public void onFailure(Throwable e) {
           "Please manually remove shuffle data after driver exit. Error: " + e);
     }
   }
-
-  @Override
-  public void close() {
-    super.close();
-  }
 }

resource-managers/kubernetes/core/src/main/scala/org/apache/spark/scheduler/cluster/kubernetes/KubernetesClusterSchedulerBackend.scala

@@ -463,10 +463,10 @@ private[spark] class KubernetesClusterSchedulerBackend(
                   .withName(runningExecutorsToPods(executorId).getMetadata.getName)
                   .get()
               }
-              val shuffleSpecifiProperties = shuffleManager.get
+              val shuffleSpecificProperties = shuffleManager.get
                   .getShuffleServiceConfigurationForExecutor(runningExecutorPod)
               val reply = SparkAppConfig(
-                  sparkProperties ++ shuffleSpecifiProperties,
+                  sparkProperties ++ shuffleSpecificProperties,
                   SparkEnv.get.securityManager.getIOEncryptionKey())
               context.reply(reply)
           }