style and compile issues

Author: WangTaoTheTonic

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

@@ -275,7 +275,8 @@ private[master] class Master(
 
     case RequestKillDriver(driverId) => {
       if (state != RecoveryState.ALIVE) {
-        val msg = s"${Utils.BACKUP_STANDALONE_MASTER_PREFIX}: $state. Can only kill drivers in ALIVE state."
+        val msg = s"${Utils.BACKUP_STANDALONE_MASTER_PREFIX}: $state. " +
+          s"Can only kill drivers in ALIVE state."
         sender ! KillDriverResponse(driverId, success = false, msg)
       } else {
         logInfo("Asked to kill driver " + driverId)

core/src/main/scala/org/apache/spark/util/Utils.scala

@@ -2119,7 +2119,7 @@ private[spark] object Utils extends Logging {
 
   /** Return true if the response message is sent from a backup Master on standby. */
   def responseFromBackup(msg: String): Boolean = {
-    message.startsWith(BACKUP_STANDALONE_MASTER_PREFIX)
+    msg.startsWith(BACKUP_STANDALONE_MASTER_PREFIX)
   }
 }