- window size is 4 bytes, not 2. - fix typos due to copy/paste from another prototype
- window size is 4 bytes, not 2.
- fix typos due to copy/paste from another prototype

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