HIVE-3682 : when output hive table to file,users should could have a separator of their own choice (Sushanth Sowmyan via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1477368 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/trunk' into trunk-gd