Style fixes

Author: ScrapCodes

core/src/main/scala/org/apache/spark/deploy/master/RecoveryModeFactory.scala

@@ -49,21 +49,21 @@ abstract class StandaloneRecoveryModeFactory(conf: SparkConf, serializer: Serial
  * LeaderAgent in this case is a no-op. Since leader is forever leader as the actual
  * recovery is made by restoring from filesystem.
  */
-private[spark] class FileSystemRecoveryModeFactory(conf: SparkConf, s: Serialization)
-  extends StandaloneRecoveryModeFactory(conf, s) with Logging {
+private[spark] class FileSystemRecoveryModeFactory(conf: SparkConf, serializer: Serialization)
+  extends StandaloneRecoveryModeFactory(conf, serializer) with Logging {
   val RECOVERY_DIR = conf.get("spark.deploy.recoveryDirectory", "")
 
   def createPersistenceEngine() = {
     logInfo("Persisting recovery state to directory: " + RECOVERY_DIR)
-    new FileSystemPersistenceEngine(RECOVERY_DIR, s)
+    new FileSystemPersistenceEngine(RECOVERY_DIR, serializer)
   }
 
   def createLeaderElectionAgent(master: LeaderElectable) = new MonarchyLeaderAgent(master)
 }
 
-private[spark] class ZooKeeperRecoveryModeFactory(conf: SparkConf, s: Serialization)
-  extends StandaloneRecoveryModeFactory(conf, s) {
-  def createPersistenceEngine() = new ZooKeeperPersistenceEngine(conf, s)
+private[spark] class ZooKeeperRecoveryModeFactory(conf: SparkConf, serializer: Serialization)
+  extends StandaloneRecoveryModeFactory(conf, serializer) {
+  def createPersistenceEngine() = new ZooKeeperPersistenceEngine(conf, serializer)
 
   def createLeaderElectionAgent(master: LeaderElectable) =
     new ZooKeeperLeaderElectionAgent(master, conf)