Github user maoling commented on the issue:
https://github.com/apache/zookeeper/pull/511
Good Catch.
It's better to create a
[JIRA](https://issues.apache.org/jira/projects/ZOOKEEPER/) issues (sign up JIRA
if you don't have an account) to bind this PR to a JIRA-ID
More details in
[this](https://cwiki.apache.org/confluence/display/ZOOKEEPER/HowToContribute])
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