[HOTFIX] Build break due to apache#5128

Author: rxin

graphx/src/main/scala/org/apache/spark/graphx/lib/PageRank.scala

@@ -25,8 +25,8 @@ import org.apache.spark.graphx._
 /**
  * PageRank algorithm implementation. There are two implementations of PageRank implemented.
  *
- * The first implementation uses the standalone [[Graph]] interface and runs PageRank for a fixed number
- * of iterations:
+ * The first implementation uses the standalone [[Graph]] interface and runs PageRank
+ * for a fixed number of iterations:
  * {{{
  * var PR = Array.fill(n)( 1.0 )
  * val oldPR = Array.fill(n)( 1.0 )