to simplify testing for #5596. allow condor_status -ads to take ads from stdin.
to simplify testing for #5596. allow condor_status -ads to take ads from stdin.

htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor