BUG : Fixed the parsing of one of the params in sct_straighten_spinalcord
BUG : Fixed the parsing of one of the params in sct_straighten_spinalcord


Former-commit-id: ca0374cb7fc773ddac511c4e45aeadbe6c7fcde5 [formerly a8f250d6a5a27f6bedb23c20a83482cd8a3dd5c0]
Former-commit-id: 46a857ada99a33f294373e6c8194154231336695
Former-commit-id: 58624051651665af310fed5d7c7a2fef891af99c
neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox