HBASE-10546 Two scanner objects are open for each hbase map task but only one scanner object is closed. (Vasu Mariyala)

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.98@1569495 13f79535-47bb-0310-9956-ffa450edef68
HBASE-10543 Two rare test failures with TestLogsCleaner and TestSplitLogWorker

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.98@1569498 13f79535-47bb-0310-9956-ffa450edef68