Tweak issue #3324 test so r1005940 no longer masks the failure of the forward merge demonstration of issue #3324.
Tweak issue #3324 test so r1005940 no longer masks the failure of the forward
merge demonstration of issue #3324.

* subversion/tests/cmdline/merge_tests.py
  (merge_range_prior_to_rename_source_existence): Adjust this test so we
   return to the pre-r1005940 behavior where an editor drive occurs where
   reporter->set_path() is called for the root of the drive with a revision
   *younger* than that we passed to svn_client__get_diff_editor().

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