RFR: Fix typo in property name for GitLab commitMetadata

[Robin Westberg]

Hi all,

Please review this minor fix that corrects a property name in the GitLab commitMetadata function.

Best regards,
Robin

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Commit messages:
 - Fix typo in property name

Changes: https://git.openjdk.java.net/skara/pull/673/files
 Webrev: https://webrevs.openjdk.java.net/skara/673/webrev.00
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/skara/pull/673.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/673/head:pull/673

PR: https://git.openjdk.java.net/skara/pull/673