apache/spark — pull request #1137 by CodingCat (2014-06-19 19:37:21+00:00)
Title: SPARK-2038: rename "conf" parameters in the saveAsHadoop functions with source-compatibility 

https://issues.apache.org/jira/browse/SPARK-2038

to differentiate with SparkConf object and at the same time keep the source level compatibility