Fix indentation

Author: kimoonkim

docs/running-on-kubernetes.md

@@ -114,9 +114,9 @@ the `default` service account used by the driver may not have appropriate pod `e
 for launching executor pods. We recommend to add another service account, say `spark`, with
 the necessary privilege. For example:
 
-  kubectl create serviceaccount spark
-  kubectl create clusterrolebinding spark-edit --clusterrole edit  \
-      --serviceaccount default:spark --namespace default
+    kubectl create serviceaccount spark
+    kubectl create clusterrolebinding spark-edit --clusterrole edit  \
+        --serviceaccount default:spark --namespace default
 
 With this, one can add `--conf spark.kubernetes.authenticate.driver.serviceAccountName=spark` to
 the spark-submit command line above to specify the service account to use.

resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/kubernetes/submit/submitsteps/DriverKubernetesCredentialsStep.scala

@@ -83,13 +83,12 @@ private[spark] class DriverKubernetesCredentialsStep(
           .endSpec()
         .build()
     }.getOrElse(
-      driverServiceAccount.map {
-        account =>
+      driverServiceAccount.map { account =>
           new PodBuilder(driverSpec.driverPod)
             .editOrNewSpec()
-            .withServiceAccount(account)
-            .withServiceAccountName(account)
-            .endSpec()
+              .withServiceAccount(account)
+              .withServiceAccountName(account)
+              .endSpec()
             .build()
       }.getOrElse(driverSpec.driverPod)
     )