REF: removed extension in sct_convert to avoid problem when script is not in PATH
REF: removed extension in sct_convert to avoid problem when script is not in PATH

3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox