TRAVIS: fixed another path issue
TRAVIS: fixed another path issue

Former-commit-id: 3242171fbdb1d7c332de306d3d210fc67c1df12f
Former-commit-id: ca5a0f56326a5109a7360f45ccd89184e619cb56
3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox