Careful, this won't stop systemctl from showing the full process command line in its output.
├─kopano-server.service
│ └─2685 n/a
├─systemd-logind.service
│ └─1037 n/a
└─kopano-gateway.service
├─ 959 n/a
├─ 1413 n/a
├─ 52489 n/a