[SPARK-2470] style - change position of line break

Author: nchammas

python/pyspark/shell.py

@@ -35,8 +35,8 @@
 from pyspark.storagelevel import StorageLevel
 
 # this is the equivalent of ADD_JARS
-add_files = (
-    os.environ.get("ADD_FILES").split(',') if os.environ.get("ADD_FILES") is not None else None)
+add_files = (os.environ.get("ADD_FILES").split(',')
+             if os.environ.get("ADD_FILES") is not None else None)
 
 if os.environ.get("SPARK_EXECUTOR_URI"):
     SparkContext.setSystemProperty("spark.executor.uri", os.environ["SPARK_EXECUTOR_URI"])