diff --git a/core/src/main/scala/spark/PairRDDFunctions.scala b/core/src/main/scala/spark/PairRDDFunctions.scala
index e1dde1b497814e5543452d5a4ea3145ed4ee069e..07efba9e8d26efa2e9a737f28d90e70a665f51d6 100644
--- a/core/src/main/scala/spark/PairRDDFunctions.scala
+++ b/core/src/main/scala/spark/PairRDDFunctions.scala
@@ -97,7 +97,6 @@ class PairRDDFunctions[K: ClassManifest, V: ClassManifest](
     combineByKey[V]({v: V => func(zeroValue, v)}, func, func, partitioner)
   }
 
-
   /**
    * Merge the values for each key using an associative function and a neutral "zero value" which may
    * be added to the result an arbitrary number of times, and must not change the result (e.g., Nil for