fix python style

Author: Davies Liu

python/pyspark/streaming/kafka.py

@@ -74,7 +74,7 @@ def getClassByName(name):
                 print "No kafka package, please build it and add it into classpath:"
                 print " $ sbt/sbt streaming-kafka/package"
                 print " $ bin/submit --driver-class-path lib_managed/jars/kafka_2.10-0.8.0.jar:" \
-                   "external/kafka/target/scala-2.10/spark-streaming-kafka_2.10-1.3.0-SNAPSHOT.jar"
+                    "external/kafka/target/scala-2.10/spark-streaming-kafka_2.10-1.3.0-SNAPSHOT.jar"
             raise e
         ser = PairDeserializer(NoOpSerializer(), NoOpSerializer())
         stream = DStream(jstream, ssc, ser)