Let "RAT" clean the output directory before running.
Let "RAT" clean the output directory before running.

git-svn-id: bddd0b838a5b7898c5897d85c562f956f46262e5@962766 13f79535-47bb-0310-9956-ffa450edef68

jaikiran/ant-ivy,jaikiran/ant-ivy,twogee/ant-ivy,apache/ant-ivy,apache/ant-ivy,apache/ant-ivy,twogee/ant-ivy,jaikiran/ant-ivy,twogee/ant-ivy,twogee/ant-ivy,jaikiran/ant-ivy,apache/ant-ivy