RFR: 1997: Allow the creator of a PR to set the commit author [v4]

[Zhao Song]

On Fri, 1 Sep 2023 22:33:38 GMT, Zhao Song <zsong at openjdk.org> wrote:

>> In this pr, we will introduce a new pull request command `/author`.
>> 
>> If an author wants to contribute a change to a repository, but he doesn't have access, then someone with the access will be able to help him with this command.
>> 
>> Usage: `/author [set|remove] [@user | openjdk-user | Full Name <email at address>]`
>> Examples: 
>> `/author set @openjdk-bot`
>> `/author @openjdk-bot`
>> `/author set J. Duke <duke at openjdk.org>`
>> `/author remove @openjdk-bot`
>> `/author remove`
>> 
>> Note: only Committers of the repository would be allowed to issue /author command.
>
> Zhao Song has updated the pull request incrementally with one additional commit since the last revision:
> 
>   update

Thanks for all the suggestions! This patch is much better with your suggestions.

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PR Comment: https://git.openjdk.org/skara/pull/1553#issuecomment-1703417290