BUG: change result in str to print
BUG: change result in str to print

Former-commit-id: f9269ce251e68b4abfda634d0b9733e8399749a3
Former-commit-id: 71bf6e9d659e72ada9ce1db910717d757d651989
3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox