RFR: 10: Update git-skara update to show changes

[Robin Westberg]

On Fri, 12 Jun 2020 09:54:17 GMT, Erik Helin <ehelin at openjdk.org> wrote:

> Hi all,
> 
> please review this small patch that makes `git skara update` show the titles of the changes that it fetched.
> 
> Testing:
> - [x] Manual testing of `git skara update` on Linux x64
> 
> Thanks,
> Erik

Looks good!

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Marked as reviewed by rwestberg (Reviewer).

PR: https://git.openjdk.java.net/skara/pull/658