Github user zentol commented on the issue:
https://github.com/apache/flink/pull/5948
I agree that the default shouldn't be listed in the common section.
The "Common Options" section will be reworked soon to also be generated (in
this [PR](https://github.com/apache/flink/pull/5843)). I suggest to look at
which options should be listed there after the PR is merged.---
