[tor-relays] tor relay and syslog logging

I'm trying to log locally (notice.log) and to a local syslog-ng server. It doesn't seem to work. I get no messages at all to my local syslog server. When I try to log some testlines manually (even as the tor system user) it seems to work. As I understood the configuration I can have multiple "Log " lines without problem, right? A test like: logger -p daemon.notice -t tortest Testing generates the expected lines in /var/log/messages What facility is used by tor when logging to syslog? I didn't find that information. System is a standard current debian 8.6 with tor Tor 0.2.8.8 (git-8d8a099454d994bd), the two Log-Lines are: Log notice file /var/log/tor/notices.log Log notice syslog Any idea what might be missing?