RFR: git-pr: git pr sponsor should sponsor

[Robin Westberg]

On Sat, 5 Sep 2020 07:15:05 GMT, Erik Helin <ehelin at openjdk.org> wrote:

> Hi all,
> 
> please review this patch that makes `git pr sponsor` actually run `GitPrSponsor::main`, _not_ `GitPrSet::main`.
> 
> Thanks,
> Erik

Looks great!

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Marked as reviewed by rwestberg (Reviewer).

PR: https://git.openjdk.java.net/skara/pull/791