Fix the comment for issue #3067 test as per fix to issue #3157 (r31075).
Fix the comment for issue #3067 test as per fix to
issue #3157 (r31075).

* subversion/tests/cmdline/merge_tests.py
  (dont_merge_revs_into_subtree_that_predate_it): Remove the comment that
   stated H_COPY/nu's mergeinfo elides to H_COPY.

git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@871162 13f79535-47bb-0310-9956-ffa450edef68

wbond/subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion