Following up on r1577149, fix svnmucc invocation by not passing a '*' argument,
which would be evaluated like a unix shell because we link svnmucc
against setargv.obj.

* subversion/tests/cmdline/special_tests.py
  (multiline_special): Use propsetf instead of propset.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1577164 13f79535-47bb-0310-9956-ffa450edef68