Integrated: 674: Allow reviewers command in PR body

[Robin Westberg]

On Wed, 16 Sep 2020 07:34:42 GMT, Erik Helin <ehelin at openjdk.org> wrote:

> Hi all,
> 
> please review this pull request that allows the `/reviewers` pull request command to be used in the PR body.
> 
> Testing:
> - `make test` passes on Linux x64
> - Added one additional unit test
> 
> Thanks,
> Erik

Looks great!

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Marked as reviewed by rwestberg (Reviewer).

PR: https://git.openjdk.java.net/skara/pull/823