HBASE-9450 TestDistributedLogSplitting fails

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HBASE-9437 hbase.regionserver.checksum.verify default is true

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HBASE-9441 Intermittent TestRegionPlacement#testRegionPlacement failure



git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1520671 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9376: TestDistributedLogSplitting creates a MiniCluster rooted at ~/hbase

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