MAPREDUCE-6044. Fully qualified intermediate done dir path breaks per-user dir creation on Windows. Contributed by Zhijie Shen.
svn merge --ignore-ancestry -c 1619863 ../../trunk/


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1619864 13f79535-47bb-0310-9956-ffa450edef68