INST: minor changes to install_w_conda
INST: minor changes to install_w_conda

Former-commit-id: 21cd8a64fb5403a2ea2647cd1b85e5b82cdf3a77
Former-commit-id: e10631b44041f254b0642953374be3a6ec1d00af
3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox