DistCp log output should contain copied and deleted files and directories

DistCp log output (specified via -log command line option) currently contains only skipped and failed (when failures are ignored via -i) files.

It will be more useful if it also contains copied and deleted files and created directories.

This should be fixed in https://github.com/apache/hadoop/blob/branch-2.7.1/hadoop-tools/hadoop-distcp/src/main/java/org/apache/hadoop/tools/mapred/CopyMapper.java