logstash.sysv.redhat uses exit code on status check
logstash.sysv.redhat uses exit code on status check

Update logstash.sysv.redhat to use exit code on status check.
Aloomaio/logstash-kafka,tinglinux/logstash-kafka,opentable/logstash-kafka,tinglinux/logstash-kafka,opentable/logstash-kafka,Aloomaio/logstash-kafka,joekiller/logstash-kafka,joekiller/logstash-kafka