RFR: Avoid running the labeler if there are none configured [v2]

[Robin Westberg]

> Hi all,
> 
> Please review this small change that fixes a few test failures.
> 
> Best regards,
> Robin

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

  Some more test fixes

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

Changes:
  - all: https://git.openjdk.java.net/skara/pull/787/files
  - new: https://git.openjdk.java.net/skara/pull/787/files/566ad08e..d2ea02ae

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=skara&pr=787&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=skara&pr=787&range=00-01

  Stats: 2 lines in 1 file changed: 2 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/skara/pull/787.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/787/head:pull/787

PR: https://git.openjdk.java.net/skara/pull/787