- json codec encodes and includes a trailing newline now; fix the test.
- json codec encodes and includes a trailing newline now; fix the test.

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