- fix typo, reported by Avleen Vig
- fix typo, reported by Avleen Vig

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