Comment # 7 on bug 1206745 from Jean Delvare

As far as I know, the only thing rtkit deals with by default is sound (at
least, the only packages that would be uninstalled if I uninstall rtkit are all
related to pulseaudio). So I would guess that James's system simply doesn't
have a configured sound device and that's why the log message has numbers "0".
Anyway, the actual numbers do not matter, even when non-zero, they are still
not worth logging continuously by default in my opinion.

Thanks for the pointers in comment #6. Having read that, I think the easiest
solution is to add:

[Service]
LogLevelMax=info

to the rtkit-daemon.service file. Alternatively, we could add an option --debug
to rtkit-daemon and not even generate these debug messages when the option
isn't used (by the way of setlogmask()). That's some more work as a few lines
of code have to be written, but it's also slightly more efficient to not
generate these messages at all than to filter them out afterwards.