RFR: 1340: Correct email domain not always used when adding a contributor to a PR [v2]

[Guoxiong Li]

On Fri, 5 May 2023 18:23:42 GMT, Zhao Song <zsong at openjdk.org> wrote:

> The field is not private, it's protected. And `LimitedCensusInstance` and `ContributorCommand` are both under `org.openjdk.skara.bots.pr`

I know why I misunderstand it. I mis-read the `CensusInstance` class of the package `org.openjdk.skara.bots.mlbridge` by using the GitHub symbol search feature. So it is also good to use the field directly. Nevermind.

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PR Comment: https://git.openjdk.org/skara/pull/1513#issuecomment-1536629386