updated batch_processing
updated batch_processing


Former-commit-id: f1f0ccffea28da70841c721d72d51098f25159a6
Former-commit-id: a7c292cdb9c41e080229a93b520216654a61522e
3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox