INST: installer.py: updated text
INST: installer.py: updated text

Former-commit-id: b67c27870afcab01e2e7de46d6bd4cbdbb4461d7 [formerly 4a0915b81ad26c63420153013f895cb6846405a3]
Former-commit-id: f633280ade78b0c7419562a57790e533180cec0a
Former-commit-id: 325412768b7368fac031296148ff190d45f2418d
neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox