RFR: 542: Adjust label (cc) command logic [v2]

[Robin Westberg]

> Hi all,
> 
> Please review this change that adjusts how the `/labels` (or `/cc`) command works, details in the issue.
> 
> Best regards,
> Robin

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

  Fix failing test

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

Changes:
  - all: https://git.openjdk.java.net/skara/pull/749/files
  - new: https://git.openjdk.java.net/skara/pull/749/files/39ce0d44..3dd145e2

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=skara&pr=749&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=skara&pr=749&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/skara/pull/749.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/749/head:pull/749

PR: https://git.openjdk.java.net/skara/pull/749