RFR: 194: git-pr create --publish should not print messages from remote

[Robin Westberg]

On Thu, 12 Dec 2019 06:59:53 GMT, Erik Helin <ehelin at openjdk.org> wrote:

> Hi all,
> 
> please review this patch that adds `--quiet` to `git-publish` and updates
> `git-pr` to make use of the `--quiet` flag. This is to prevent output from the
> remote about creating a new pull request from showing up.
> 
> I also fixed a bug where the upstream branch has to be re-read after a
> succesful publish.
> 
> Thanks,
> Erik
> 
> - [x] Manual testing of `git pr create --publish`

Looks good!

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Marked as reviewed by rwestberg (Reviewer).

PR: https://git.openjdk.java.net/skara/pull/319