http://svn.apache.org/r1626978
2.4.x patch: http://people.apache.org/~jkaluza/patches/httpd-2.4.x-errorlog_provider.patch
+1: jkaluza
+ +1: covener w/ doc or code to fix syntax (providername:providerarg not supported like syslog or socacheproviders,
+ needs 2 args which is not valid in ErrorLog manual)
* mod_journald: Add new module mod_journald to log error logs into journald.
This patch needs changes done in mod_systemd patch (already