HADOOP-10495. TestFileUtil fails on Windows due to bad permission assertions. Contributed by Chris Nauroth.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1587137 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-10496. Metrics system FileSink can leak file descriptor. Contributed by Chris Nauroth.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1587141 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6237. TestDFSShell#testGet fails on Windows due to invalid file system path. Contributed by Chris Nauroth.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1587146 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6238. TestDirectoryScanner leaks file descriptors. Contributed by Chris Nauroth.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1587148 13f79535-47bb-0310-9956-ffa450edef68