On 1.7.x-issue4480 branch.

* subversion/mod_dav_svn/repos.c
  (do_out_of_date_check): Reverse test so that OOD is correctly detected,
   make variables const to avoid compiler warning.

* subversion/tests/cmdline/commit_tests.py
  (commit_mergeinfo_ood): Change to construct that works in 1.7.


git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/1.7.x-issue4480@1589796 13f79535-47bb-0310-9956-ffa450edef68