Merge pull request #17 from tabdulradi/patch-1

Fix warn filter in union example

Author: holdenk

src/main/scala/com/oreilly/learningsparkexamples/scala/BasicFilterUnionCombo.scala

@@ -13,7 +13,7 @@ object BasicFilterUnionCombo {
       val sc = new SparkContext(conf)
       val inputRDD = sc.textFile(args(1))
       val errorsRDD = inputRDD.filter(_.contains("error"))
-      val warningsRDD = inputRDD.filter(_.contains("error"))
+      val warningsRDD = inputRDD.filter(_.contains("warn"))
       val badLinesRDD = errorsRDD.union(warningsRDD)
       println(badLinesRDD.collect().mkString("\n"))
     }