Tweak a regression test so that it does not depend on APR's hash order.
Tweak a regression test so that it does not depend on APR's hash order.

* subversion/tests/cmdline/svnlook_tests.py
  (test_txn_flag): Use UnorderedOutput since 'svnlook proplist' order is
   unknown.

[Reverted in r1291417.]

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