With SWWAF_LOG_REMOTE_URL set, as syslog+udp, syslog+tcp or syslog+tls,
every line on stdout is also sent as the message of an RFC 5424 record,
octet-counted over TCP and TLS, from a bounded buffer that drops its
oldest line when full, so a slow or unreachable server holds up nothing.
A failed connection is retried with backoff; lines sent, dropped and
waiting are metrics. At a stop the lines still waiting get at most two
seconds. Further settings: the TLS CA file, the buffer, the facility and
the app name. Written with the standard library alone: its log/syslog
writes only the older format.
Model: opus-5-5
