NEW: default param for -vertfile
NEW: default param for -vertfile

Former-commit-id: 5216518646f80475c7aaacfa55945784c570150d [formerly 2748ba8b0ff80a26511b9b01113b6ba8fae8b0f1]
Former-commit-id: 9aefd0ad06d6c88f4b9e4b5e85a50a46bd95b485
Former-commit-id: c260d5c2438f06234e2f4f38c324e17675c337fc
neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox