[shepherd] herd status suggestion

[Nils Gillmann]

Hi,

right now we have this view:

abyayala$ sudo herd status tor
Status of tor:
  It is stopped.
  It is disabled.
  Provides (tor).
  Requires (user-processes loopback syslogd).
  Conflicts with ().
  Will be respawned.
  Last respawned on Sun Jun 10 08:08:45Z 2018.


Would it be an option to change the status output to,
if it conflicts with no other service:

  Conflicts with no other services.

instead of the representation of an empty list?