REF: now indicates the calling function that produces the error
REF: now indicates the calling function that produces the error

Former-commit-id: 52d3b9857f873c839d7e6f763f40a85a056d7902
Former-commit-id: f749c23565524cc58c16f95d44e1601e9ae33b85
3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox