MAPREDUCE-5650. Job fails when hprof mapreduce.task.profile.map/reduce.params is specified (Gera Shegalov via Sandy Ryza)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1559202 13f79535-47bb-0310-9956-ffa450edef68