more robust and add to .cshrc systematically
more robust and add to .cshrc systematically


Former-commit-id: 32f6bb7f1857c960e5b73a0c38ef642dcc17bd42
Former-commit-id: bc55a71f38435eb6ab19d6b8d6f1e2c3af12875c
3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox