INST: now display full verbose for mkdir INSTALL_DIR
INST: now display full verbose for mkdir INSTALL_DIR

Former-commit-id: 70cb943713e4d55e71c4ddfa8647ab5604054f5c [formerly 3a52ac88dd05c7602cb3d90dd9cda1786d5de561]
Former-commit-id: b78b2129b961c8128caae588931164df88774ff0
Former-commit-id: d50c50cdf8d0eab08b76c5c93cea0f1a80f0d2a0
neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox