MINOR: Update consumer group describe output in the documentation
Author: Vahid Hashemian
Reviewers: Ewen Cheslack-Postava
Closes from vahidhashemian/doc/update_consumer_group_describe_output
<pre>
&gt; bin/kafka-consumer-groups.sh --bootstrap-server broker1:9092 --describe --group test-consumer-group
- GROUP TOPIC PARTITION CURRENT-OFFSET LOG-END-OFFSET LAG OWNER
- test-consumer-group test-foo 0 1 3 2 consumer-1_/127.0.0.1
+ TOPIC PARTITION CURRENT-OFFSET LOG-END-OFFSET LAG CONSUMER-ID HOST CLIENT-ID
+ test-foo 0 1 3 2 consumer-1-a5d61779-4d04-4c50-a6d6-fb35d942642d /127.0.0.1 consumer-1
</pre>
If you are using the old high-level consumer and storing the group metadata in ZooKeeper (i.e. <code>offsets.storage=zookeeper</code>), pass
