Fix help message so to exit(0) instead of die. When you die, plasticwrap thinks that ssh failed.
Fix help message so to exit(0) instead of die. When you die, plasticwrap thinks that ssh failed.

nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome