RFR: checkout: sort marks before converting

[Robin Westberg]

On Fri, 29 Jan 2021 13:13:33 GMT, Erik Helin <ehelin at openjdk.org> wrote:

> Hi all,
> 
> please review this small patch that ensures that we sort the existing marks before passing them to the converter.
> 
> Thanks,
> Erik

Looks good!

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Marked as reviewed by rwestberg (Reviewer).

PR: https://git.openjdk.java.net/skara/pull/995