OPT: parser now understand filenames with spaces
OPT: parser now understand filenames with spaces

Former-commit-id: 37aade7f9ae3e4ac61ff1fa7ef337867368b8e4f
Former-commit-id: d8f1fd766c30fb9e9b80a1fa41d571f72d8048f7
3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox