apache/spark — pull request #3754 by srowen (2014-12-21 11:13:45+00:00)
Title: SPARK-4910 [CORE] build failed (use of FileStatus.isFile in Hadoop 1.x)

Fix small Hadoop 1 compile error from SPARK-2261. In Hadoop 1.x, all we have is FileStatus.isFile, so these "is directory" assertions are changed to "is not a file". This is how similar checks are done so far in the code base.