RFR: merge-bot: specs can have prerequisites

[Erik Helin]

On Mon, 27 Apr 2020 11:48:48 GMT, Robin Westberg <rwestberg at openjdk.org> wrote:

>> Hi all,
>> 
>> please review this pull request that allows specifications for the merge bot to
>> have other repositories as prerequisites. Having a repository as a prerequisite
>> mean that the specification will not be executed if a repository that is a
>> prerequisite has any pull requests open due to automatic merge conflicts.
>> 
>> Testing:
>> - `make test` passes on Linux x64
>> - added a new unit test
>> 
>> Thanks,
>> Erik
>
> Looks good!

Thanks Robin for reviewing!

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PR: https://git.openjdk.java.net/skara/pull/604