Support for silent option when running a job

[melker]

When starting a heritrix job automatically I want it to be silent when everything works and only output something if it fails.

I start a job (from a cron-job) as specified on https://heritrix.readthedocs.io/en/latest/operating.html#running-heritrix
.../heritrix/bin/heritrix -a someuser:somepassword -p portnumber -r jobname

It outputs the stuff below:
tue jul 4 04:01:01 CEST 2023 Heritrix starting (pid 46328).......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
...
and maybe some more line at the end

I would like a "-q" option or something to NOT get the output at all when it works

PS:
I checked at logging options but I did not find anything useful for this.

PPS:
I tried using "> /dev/null" (or to some file) but it is not that good as error messages are hidden too. For example if starting with a non existing job name. I think the error should have been written to stderr instead.