* subversion/libsvn_client/diff.c
  (diff_prepare_repos_repos): Resolve an operator precedence bug identified
    by the warning buildbot. This resolves some possible segfaults.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1570276 13f79535-47bb-0310-9956-ffa450edef68