BUG: set_orientation@sct_utils: needed absolute path
BUG: set_orientation@sct_utils: needed absolute path

Former-commit-id: da5224a109b6c8492cea009c197b4a5eb05ec734
Former-commit-id: ef071c77b670fe96001ae6252fedc0303030d775
3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox