message: Remove duplicate message fields from container logs
diff: @@ -162,10 +162,12 @@ data:
  </pattern>
  </parse>
  </filter>
  - # remove the duplicate "log" field if the record was successfully parsed
  + # remove the redundant "log" field if the record was successfully parsed
  + # some container logs have a duplicate message field for some reason, so
  + # remove that too.
  <filter lagoon.*.container>
  @type record_modifier
  - remove_keys _dummy_
  + remove_keys _dummy_,message
  <record>
  # check for nginxy fields
  _dummy_ ${if %w(http_x_forwarded_for referer agent).all?{|key| record[key]}; record.delete("log"); end; nil}
  