YARN-2204. Explicitly enable vmem check in TestContainersMonitor#testContainerKillOnMemoryOverflow. (Anubhav Dhoot via kasha)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1607233 13f79535-47bb-0310-9956-ffa450edef68