Scalastyle fix

Author: ash211

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

@@ -36,8 +36,8 @@ import org.apache.spark.{SparkContext, SparkEnv, SparkException}
 import org.apache.spark.deploy.kubernetes.{ConfigurationUtils, InitContainerResourceStagingServerSecretPlugin, PodWithDetachedInitContainer, SparkPodInitContainerBootstrap}
 import org.apache.spark.deploy.kubernetes.config._
 import org.apache.spark.deploy.kubernetes.constants._
-import org.apache.spark.internal.config
 import org.apache.spark.deploy.kubernetes.submit.{InitContainerUtil, MountSmallFilesBootstrap}
+import org.apache.spark.internal.config
 import org.apache.spark.network.netty.SparkTransportConf
 import org.apache.spark.network.shuffle.kubernetes.KubernetesExternalShuffleClient
 import org.apache.spark.rpc.{RpcAddress, RpcCallContext, RpcEndpointAddress, RpcEnv}