Move HADOOP-9247 to release 0.23.7 section in CHANGES.txt

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HDFS-4444. Add space between total transaction time and number of transactions in FSEditLog#printStatistics. Contributed by Stephen Chu.

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Revering MAPREDUCE-2264

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HADOOP-9255. relnotes.py missing last jira (tgraves)

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MAPREDUCE-4803. Remove duplicate copy of TestIndexCache. Contributed by Mariappan Asokan


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HADOOP-9246. Execution phase for hadoop-maven-plugin should be process-resources. Contributed by Karthik Kambatla and Chris Nauroth


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