anchor.diff:  ** Parameter to  remove the specified `tag` field from the syslog prefix.
   ** Parameter to set the specified field as the syslog key.
   ** Parameter to specify the syslog log facility or source.
  -** Parameter to specify the syslog log severity. 
  +** Parameter to specify the syslog log severity.
   ** Parameter to use the severity and facility from the record if available. If `true`, the `container_name`, `namespace_name`, and `pod_name` are included in the output content.
   ** Parameter to specify the key to set the payload of the syslog message. Defaults to `message`.
   <6> Specify the RFC protocol to use: `3164`.
  
positive.code: @type syslog_buffered
  remote_syslog rsyslogserver.example.com
  port 514
  hostname fluentd-4nzfz
  remove_tag_prefix tag
  facility local0
  severity info
  
negative.code: </store>
  ----
  
  You can configure the following `syslog` parameters. For more information, see the syslog link:https://tools.ietf.org/html/rfc3164[RFC3164].
  
  * facility: The link:https://tools.ietf.org/html/rfc3164#section-4.1.1[syslog facility]. The value can be a decimal integer or a case-insensitive keyword:
  ** `0` or `kern` for kernel messages
  