/etc/host_hostname not used

[MostFrabjous]

Reading the logspout doku (see "Using Logspout in a swarm"), logspout should use /etc/host_hostname (if present) for the SYSLOG_HOSTNAME field.

Though the file is availabe in my container instance, logspout-gelf still uses the docker-container-hostname for SYSLOG_HOSTNAME.

[jortkoopmans]

I think that reading the /etc/host_hostname file is specifically part of the syslog module. Since we're using the GELF module directly, I guess this file is not used.

Nonetheless, I think this would be a great feature to have.