YARN-1285. Changed the default value of yarn.acl.enable in yarn-default.xml to be consistent with what exists (false) in the code and documentation. Contributed by Kenji Kikushima.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1564190 13f79535-47bb-0310-9956-ffa450edef68