test(parsing): breaking test missing column values
test(parsing): breaking test missing column values

Related to #38. See also [1].

[1] https://github.com/apache/kafka/blob/0.11.0/core/src/main/scala/kafka/admin/ConsumerGroupCommand.scala#L138

Test currently fails (which is expected).

kawamuray/prometheus-kafka-consumer-group-exporter,kawamuray/prometheus-kafka-consumer-group-exporter