RFR: 8230623: Extract command-line help for -Xlint sub-options to new --help-lint [v4]

[Guoxiong Li]

On Thu, 27 May 2021 00:54:25 GMT, Jonathan Gibbons <jjg at openjdk.org> wrote:

>> Guoxiong Li has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains five commits:
>> 
>>  - Merge branch 'master' into JDK-8230623
>>  - Update copyright
>>  - Merge branch 'master' into JDK-8230623
>>  - Remove the content in documentation javac.1
>>  - 8230623: Extract command-line help for -Xlint sub-options to new --help-lint
>
> Approved, with some minor suggestions to improve the text in the resource file.
> 
> Thanks for hanging in there with this one.

@jonathan-gibbons The man documentation `javac.1` needs to be revised, too. Could I get your help to revise it? Thanks a lot.

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