[sr-dev] [kamailio/kamailio] Systemd unit update (#1889)

[Juha Heinanen]

Daniel-Constantin Mierla writes:

> Does this one still needs to be addressed, or are we fine with the
> version included in the deb/rpm packages right now?

It works right now (with the syslog message), but according systemd
documentation, the dir is /run, not /var/run:

https://www.freedesktop.org/software/systemd/man/systemd.exec.html#RuntimeDirectory=

Perhaps the best would be to use $RUNTIME_DIRECTORY environment var.

-- Juha