call site 4 for path.SvnAuth.makecmdoptions
path/svn/testing/test_auth.py - line 65
63
64
65
   def test_makecmdoptions_uname_pw_makestr(self):
       auth = py.path.SvnAuth('foo', 'bar')
->     assert auth.makecmdoptions() == '--username="foo" --password="bar"'