TEST: process_segmentation: updated todo
TEST: process_segmentation: updated todo

Former-commit-id: 1ee81d67d1c6a6c8d5d888c1f4f27a49e8c58250
Former-commit-id: d37ceea77700ba7e01ea7b9f3798009d3f7cca8f
3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox