RFR: 8230623: Extract command-line help for -Xlint sub-options to new --help-lint

[Guoxiong Li]

On Wed, 16 Dec 2020 18:34:01 GMT, Jonathan Gibbons <jjg at openjdk.org> wrote:

>> Hi all,
>> 
>> This patch splits out the concrete keys of -Xlint into a new option, --help-lint, 
>> so that the output of --help-extra is kept clean and concise.
>> 
>> Thank you for taking the time to review.
>> 
>> Best Regards.
>
> Because a new option is being added, a CSR approval is required.

@jonathan-gibbons Could I ask your help to create the CSR request in the bug tracker?

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PR: https://git.openjdk.java.net/jdk/pull/1758