RFR: 8230623: Extract command-line help for -Xlint sub-options to new --help-lint [v2]

Wed Apr 28 13:03:53 UTC 2021

On Thu, 22 Apr 2021 17:39:13 GMT, Guoxiong Li <gli at openjdk.org> wrote:

>> Guoxiong Li has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Remove the content in documentation javac.1
>
> The CSR was created. Please see [JDK-8265772](https://bugs.openjdk.java.net/browse/JDK-8265772).  And I updated the copyright. Thank you for taking the time to review the CSR and this patch.

@lgxbslgx I added myself as a reviewer of the CSR. `javac -X` does not output any lint options on my machine, can you update the CSR it clarifying when `-X` would or would not output lint options,  and/or remove the non-relevant occurrences of `(-X)` ?

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