Put more error messages to stdout instead of stderr, so things don't get confusing if they're redirected to different places.
Put more error messages to stdout instead of stderr, so things
don't get confusing if they're redirected to different places.

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