postfix/rootfs/etc/syslog-ng/syslog-ng.conf

@version: 3.7

options {
    stats_freq (0);
    time_reopen (10);
    chain_hostnames (off);
    use_dns (no);
    use_fqdn (no);
    keep_hostname (yes);
};

source s_local {
    unix-dgram("/dev/log");
    internal();
};

destination catchall {
	pipe("/dev/stdout");
};

log {
    source(s_local);
    destination(catchall);
};