HTCONDOR-837 Allow singularity jobs to work with user level checkpointing
HTCONDOR-837 Allow singularity jobs to work with user level checkpointing

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