Plumed outputs "Authorization required, but no authorization protocol specified" #1315
Description
When using the plumed cli tool, a couple of Authorization required, but no authorization protocol specified messages are output. I believe this may have something to do with X11? I'm ssh'ing into a machine with no X11 enabled, and when I install plumed in a machine with X11 enabled, this issue does not appear. In any case I don't think these messages should be printed. Any help on how to debug this would be very much appreciated.
