Style fixes

Author: pwendell

core/src/main/scala/org/apache/spark/Aggregator.scala

@@ -27,7 +27,6 @@ import org.apache.spark.util.collection.{AppendOnlyMap, ExternalAppendOnlyMap}
  * @param mergeValue function to merge a new value into the aggregation result.
  * @param mergeCombiners function to merge outputs from multiple mergeValue function.
  */
-
 case class Aggregator[K, V, C] (
     createCombiner: V => C,
     mergeValue: (C, V) => C,

core/src/main/scala/org/apache/spark/SparkContext.scala

@@ -667,7 +667,6 @@ class SparkContext(
 
   /**
    * <span class="badge" style="float: right; background-color: #44751E;">DEVELOPER API</span>
-   *
    * Register a listener to receive up-calls from events that happen during execution.
    */
   def addSparkListener(listener: SparkListener) {
@@ -980,7 +979,6 @@ class SparkContext(
 
   /**
    * <span class="badge" style="float: right; background-color: #44751E;">DEVELOPER API</span>
-   *
    * Run a job that can return approximate results.
    */
   def runApproximateJob[T, U, R](
@@ -999,7 +997,6 @@ class SparkContext(
 
   /**
    * <span class="badge" style="float: right; background-color: #257080;">EXPERIMENTAL API</span>
-   *
    * Submit a job for execution and return a FutureJob holding the result.
    */
   def submitJob[T, U, R](

core/src/main/scala/org/apache/spark/rdd/PartitionPruningRDD.scala

@@ -22,7 +22,7 @@ import scala.reflect.ClassTag
 import org.apache.spark.{NarrowDependency, Partition, TaskContext}
 
 private[spark] class PartitionPruningRDDPartition(idx: Int, val parentSplit: Partition)
-    extends Partition {
+  extends Partition {
   override val index = idx
 }
 

core/src/main/scala/org/apache/spark/rdd/RDD.scala

@@ -856,7 +856,6 @@ abstract class RDD[T: ClassTag](
 
   /**
    * <span class="badge" style="float: right; background-color: #257080;">EXPERIMENTAL API</span>
-   *
    * Return approximate number of distinct elements in the RDD.
    *
    * The accuracy of approximation can be controlled through the relative standard deviation