fixed failing headpin test testUserRole_create 	

Hi,

   the latest test report for headpin 
   http://hudson.rhq.lab.eng.bos.redhat.com:8080/hudson/job/official-headpin-cli/123/ReportNG_Report/

  The above test report saturday(1st June 2013) had the for testUserRole_create
  have fixed it

  Please, review it
  Thanks !!