install_sct: fixed bug on package installation
install_sct: fixed bug on package installation


Former-commit-id: 8ffe66c3c277276447eb2b95efa1ad4a38fedc06
Former-commit-id: 98bbdd04683e30f9bfc805d886c638757be65754
3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox