OPT: Set “MeanSquares” the default metric for sct_fmri_moco (fixes issue 1468) (#1649)
OPT: Set “MeanSquares” the default metric for sct_fmri_moco (fixes issue 1468) (#1649)



Former-commit-id: e68ad3d338cb1f32d25b0559bee5a1ce76122a78
neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox