OPT: label_utils: went back to previous cross definition
OPT: label_utils: went back to previous cross definition

Former-commit-id: e288fbdcb290c8d3d3cfa27c431793c23dbe88e6
Former-commit-id: 0e5917689a506095013ff1172523cfd600e0cf91
3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox