RFR: Handle trailing blank lines in commit message [v2]

[Robin Westberg]

> This change ensures that a commit message ending with a blank line does not generate an exception.

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

  Trailing blank lines end up in "additional"

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Changes:
  - all: https://git.openjdk.java.net/skara/pull/959/files
  - new: https://git.openjdk.java.net/skara/pull/959/files/696fb633..f7ca521d

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=skara&pr=959&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=skara&pr=959&range=00-01

  Stats: 5 lines in 2 files changed: 0 ins; 3 del; 2 mod
  Patch: https://git.openjdk.java.net/skara/pull/959.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/959/head:pull/959

PR: https://git.openjdk.java.net/skara/pull/959