HBASE-10954 Fix TestCloseRegionHandler.testFailedFlushAborts (Mikhail Antonov)

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1586213 13f79535-47bb-0310-9956-ffa450edef68
Merge remote-tracking branch 'ASF_HBase_remote/trunk' into trunk