nessus and systemd

[Reindl Harald]

F15 systemd writes only this in the log which is not very helpful

systemd[1]:
PID 7284 read from file /var/run/nessusd.pid does not exist
Your service or init script might be broken
___________________________

on F14 you get

>  All plugins loaded
>                                                            [  OK  ]
>  *** 'ca_file' is not set - did you run nessus-mkcert ?