RFR: 347: Display additional errors in the pull request status message (if any)

[Robin Westberg]

Hi all,

Please review this change that displays additional errors in the pull request status message (if any), as they can be a
bit hard to find in the check status.

Best regards,
Robin

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Commit messages:
 - Display additional errors in the pull request status message (if any)

Changes: https://git.openjdk.java.net/skara/pull/566/files
 Webrev: https://webrevs.openjdk.java.net/skara/566/webrev.00
  Issue: https://bugs.openjdk.java.net/browse/SKARA-347
  Stats: 24 lines in 2 files changed: 22 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/skara/pull/566.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/566/head:pull/566

PR: https://git.openjdk.java.net/skara/pull/566