RFR: 214: Improve the message given when a change can be integrated

[Jeanette Winzenburg]

On Thu, 19 Dec 2019 14:46:07 GMT, Robin Westberg <rwestberg at openjdk.org> wrote:

> Hi all,
> 
> This change adjusts the "this change is now ready to be integrated" message. After the change, it would look something like the below. Comments are welcome!
> 
> @rwestberg This change now passes all automated pre-integration checks. When the change also fulfills all [project specific requirements](https://github.com/openjdk/skara/blob/master/CONTRIBUTING.md), type `/integrate` in a new comment to proceed. After integration, the commit message will be:
> No need for locking when using TestHostedRepository
> 
> Reviewed-by: ehelin
> - If you would like to add a summary, use the `/summary` command.
> - To credit additional contributors, use the `/contributor` command.
> - To add additional solved issues, use the `/solves` command.
> 
> Since the source branch of this PR was last updated there have been 61 commits pushed to the `master` branch. As there are no conflicts, your changes will automatically be rebased on top of these commits when integrating. If you prefer to do this manually, please merge `master` into your branch first.
> 
> ➡️ To integrate this PR with the above commit message, type `/integrate` in a new comment.

looks good to me :)

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PR: https://git.openjdk.java.net/skara/pull/343