Avoid nullptr dereference when list is empty. HTCONDOR-416
Avoid nullptr dereference when list is empty. HTCONDOR-416

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