Enhanced system logging daemon (JSON plugin)

 syslog-ng is an enhanced log daemon, supporting a wide range of input
 and output methods: syslog, unstructured text, message queues,
 databases (SQL and NoSQL alike) and more.
 .
 Key features:
 .
  * receive and send RFC3164 and RFC5424 style syslog messages
  * work with any kind of unstructured data
  * receive and send JSON formatted messages
  * classify and structure logs with builtin parsers (csv-parser(),
    db-parser(), etc.)
  * normalize, crunch and process logs as they flow through the system
  * hand on messages for further processing using message queues (like
    AMQP), files or databases (like PostgreSQL or MongoDB).
 .
 This package provides the $(format-json) template function plugin,
 which makes it possible to conveniently serialize system log messages
 to JSON. Along with the template function, this module also provides
 a json-parser plugin, allowing syslog-ng to parse JSON input.