RFR: Wrap long lines in generated email bodies

[Robin Westberg]

Hi all,

Please review this change that wraps long lines in generated emails, to make them look nicer in the archives.

Best regards,
Robin

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Commits:
 - 8c82a4e3: Initial implementation

Changes: https://git.openjdk.java.net/skara/pull/476/files
 Webrev: https://webrevs.openjdk.java.net/skara/476/webrev.00
  Stats: 134 lines in 3 files changed: 133 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/skara/pull/476.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/476/head:pull/476

PR: https://git.openjdk.java.net/skara/pull/476