Provides the ability to import structured log messages from systemd
journal to rsyslog (and conversely). Note that this module reads the
journal database, what is considered a relatively performance-intense
operation. As such, the performance of a configuration utilizing this
module may be notably slower. Some versions of systemd journal have
problems with database corruption, which leads to the journal to
return the same data endlessly in a tight loop. It is strongly
recommended to use this plugin only if there is hard need to do so.