HIVE-6576 : sending user.name as a form parameter in POST doesn't work post HADOOP-10193 (Eugene Koifman via Thejas Nair)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/branch-0.13@1577467 13f79535-47bb-0310-9956-ffa450edef68