Add a test for issue #3176 'log -g output for merge reversal is bit confusing'.
Add a test for issue #3176 'log -g output for merge reversal is bit
confusing'.

* subversion/tests/cmdline/log_tests.py

  (parse_log_output): Parse 'Reverse merged via' logs and store those
   separately in the returned hash.

  (check_merge_results): Take a new optional argument describing expected
   logs resulting from reverse merges.

  (merge_sensitive_log_reverse_merges): New test.

  (test_list): Add merge_sensitive_log_reverse_merges.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion