Fix code style

Author: Sephiroth-Lin

sql/core/src/main/scala/org/apache/spark/sql/execution/SparkStrategies.scala

@@ -216,15 +216,15 @@ private[sql] abstract class SparkStrategies extends QueryPlanner[SparkPlan] {
         val buildSide =
           if (left.statistics.sizeInBytes <= right.statistics.sizeInBytes) {
             joins.BuildRight
-          }  else {
+          } else {
             joins.BuildLeft
           }
         execution.joins.CartesianProduct(planLater(left), planLater(right), buildSide) :: Nil
       case logical.Join(left, right, Inner, Some(condition)) =>
         val buildSide =
           if (left.statistics.sizeInBytes <= right.statistics.sizeInBytes) {
             joins.BuildRight
-          }  else {
+          } else {
             joins.BuildLeft
           }
         execution.Filter(condition,

sql/core/src/main/scala/org/apache/spark/sql/execution/joins/CartesianProduct.scala

@@ -41,7 +41,7 @@ case class CartesianProduct(
 
   protected override def doExecute(): RDD[InternalRow] = {
     val broadcastedRelation = sparkContext.broadcast(broadcast.execute().map(_.copy()))
-    broadcastedRelation.value.cartesian(streamed.execute().map(_.copy())).mapPartitions{ iter =>
+    broadcastedRelation.value.cartesian(streamed.execute().map(_.copy())).mapPartitions { iter =>
       val joinedRow = new JoinedRow
       buildSide match {
         case BuildRight => iter.map(r => joinedRow(r._1, r._2))