YARN-2677 registry punycoding of usernames doesn't fix all usernames to be  DNS-valid (stevel)
HADOOP-10926. Improve test-patch.sh to apply binary diffs (cmccabe)
HDFS-7035. Make adding a new data directory to the DataNode an atomic operation and improve error handling (Lei Xu via Colin P. McCabe)
HADOOP-10926: Improve test-patch.sh to apply binary diffs: fix typo
Revert "HADOOP-10926. Improve test-patch.sh to apply binary diffs (cmccabe)