gw3/ipv4: show protocols all p_mast

p_mast Pipe master up 2017-07-14 => ibgp

Preference:     70
  Input filter:   (unnamed)
  Output filter:  REJECT
  Routes:         19 imported, 0 exported
  Route change stats:     received   rejected   filtered    ignored   accepted
    Import updates:        3806272          0    3789089         38         55
    Import withdraws:       353109          0        ---     353073         36
    Export updates:        3806291        112    3806179          0          0
    Export withdraws:       353109          0        ---          0          0