[SPARK-12692][BUILD][HOT-FIX] Fix the scala style of KinesisBackedBlockRDDSuite.scala.

https://github.com/apache/spark/pull/10736 was merged yesterday and caused the master start to fail because of the style issue.

Author: Yin Huai <yhuai@databricks.com>

Closes #10742 from yhuai/fixStyle.

extras/kinesis-asl/src/test/scala/org/apache/spark/streaming/kinesis/KinesisBackedBlockRDDSuite.scala

@@ -158,9 +158,9 @@ abstract class KinesisBackedBlockRDDTests(aggregateTestData: Boolean)
       testBlockRemove: Boolean = false
     ): Unit = {
     require(shardIds.size > 1, "Need at least 2 shards to test")
-    require(numPartitionsInBM <= shardIds.size ,
+    require(numPartitionsInBM <= shardIds.size,
       "Number of partitions in BlockManager cannot be more than the Kinesis test shards available")
-    require(numPartitionsInKinesis <= shardIds.size ,
+    require(numPartitionsInKinesis <= shardIds.size,
       "Number of partitions in Kinesis cannot be more than the Kinesis test shards available")
     require(numPartitionsInBM <= numPartitions,
       "Number of partitions in BlockManager cannot be more than that in RDD")