HDFS-6190. Minor textual fixes in DFSClient. Contributed by Charles Lamb.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1584376 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-5818. Added "hsadmin" command into mapred.cmd. Contributed by Jian He.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1584378 13f79535-47bb-0310-9956-ffa450edef68