RFR: git-jcheck: set exit code correctly

[Robin Westberg]

On Fri, 21 Feb 2020 13:08:56 GMT, Erik Helin <ehelin at openjdk.org> wrote:

> Hi all,
> 
> please review this small patch that ensures that `JCheckCLIVisitor` correctly
> sets `hasDisplayedError` for all errors. This will in turn make sure that
> `git-jcheck` exits with code `1` whenever an error has been shown which in
> turn will make `git create --jcheck` work correctly.
> 
> Testing:
> - Manual testing of `git jcheck` and `git pr create --jcheck` on Linux x64
> 
> Thanks,
> Erik

Looks good!

-------------

Marked as reviewed by rwestberg (Reviewer).

PR: https://git.openjdk.java.net/skara/pull/464