reinstall only sct binary when -m option is given
reinstall only sct binary when -m option is given


Former-commit-id: 060f0dbaa10d2c963a422890141de974e432559c [formerly 6f62c4737c17010aaefb53181c68bec5984cd7ed]
Former-commit-id: 4279be669f625b76ba37239e2b577d6aac7e2957
Former-commit-id: df1bc81dbef163bfbaa486c4d8cd1410de3f44e6
neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox