HADOOP-9387. Fix DF so that it won't execute a shell command on Windows to compute the file system/mount point.  Contributed by Ivan Mitic


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1459642 13f79535-47bb-0310-9956-ffa450edef68
Move HADOOP-9387 to Trunk in CHANGES.txt.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1459643 13f79535-47bb-0310-9956-ffa450edef68