Fixed comments about zk_quorum. s/space/comma/
Fixed comments about zk_quorum. s/space/comma/

Fixed comments. zk_quorum list is comma separated, not space separated.
MadDogTechnology/opentsdb,MadDogTechnology/opentsdb,eswdd/opentsdb,eswdd/opentsdb,OpenTSDB/opentsdb,alienth/opentsdb,johann8384/opentsdb,alienth/opentsdb,OpenTSDB/opentsdb,johann8384/opentsdb,MadDogTechnology/opentsdb,OpenTSDB/opentsdb