RFR: Fix parsing of editor commandline in git-pr.

[Christoph Langer]

Fix parsing of editor commandline in git-pr.

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Commits:
 - 199285fc: Fix parsing of editor commandline in git-pr.

Changes: https://git.openjdk.java.net/skara/pull/259/files
 Webrev: https://webrevs.openjdk.java.net/skara/259/webrev.00
  Stats: 10 lines in 2 files changed: 8 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/skara/pull/259.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/259/head:pull/259

PR: https://git.openjdk.java.net/skara/pull/259