YARN-1854. Fixed test failure in TestRMHA#testStartAndTransitions. Contributed by Rohith Sharma KS.
svn merge --ignore-ancestry -c 1580097 ../../trunk/


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1580098 13f79535-47bb-0310-9956-ffa450edef68