RFR: Treat bad whitespace in commit message gracefully [v2]

[Robin Westberg]

> The check "message" should handle the error gracefully instead of throwing. Also trim individual lines in multi-line
> summaries to help avoid this problem in the first place.
> Best regards,
> Robin

Robin Westberg has updated the pull request incrementally with one additional commit since the last revision:

  Updated after review

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

Changes:
  - all: https://git.openjdk.java.net/skara/pull/814/files
  - new: https://git.openjdk.java.net/skara/pull/814/files/13c77292..6ed61f60

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=skara&pr=814&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=skara&pr=814&range=00-01

  Stats: 9 lines in 1 file changed: 8 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/skara/pull/814.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/814/head:pull/814

PR: https://git.openjdk.java.net/skara/pull/814