- use first element if fields['message'] is an array
- use first element if fields['message'] is an array

joekiller/logstash-kafka,tinglinux/logstash-kafka,tinglinux/logstash-kafka,opentable/logstash-kafka,joekiller/logstash-kafka,Aloomaio/logstash-kafka,opentable/logstash-kafka,Aloomaio/logstash-kafka