apache/spark — pull request #436 by advancedxy (2014-04-17 17:01:04+00:00)
Title: [SPARK-1527] change rootDir*.getName to rootDir*.getAbsolutePath 

JIRA issue: [SPARK-1527](https://issues.apache.org/jira/browse/SPARK-1527)

getName() only gets the last component of the file path. When deleting test-generated directories,
we should pass the generated directory's absolute path to DiskBlockManager.