RFR: 258: jcheck reviewers check has wrong default values

[Erik Helin]

Hi all,

please review this patch that fixes the default value for the "new" style
configuration of the "reviewers" check in jcheck.

Testing:
- added a new unit test
- all unit tests pass on Linux x64

Thanks,
Erik

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

Commits:
 - 243f9371: skara-258

Changes: https://git.openjdk.java.net/skara/pull/394/files
 Webrev: https://webrevs.openjdk.java.net/skara/394/webrev.00
  Issue: https://bugs.openjdk.java.net/browse/SKARA-258
  Stats: 36 lines in 2 files changed: 31 ins; 0 del; 5 mod
  Patch: https://git.openjdk.java.net/skara/pull/394.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/394/head:pull/394

PR: https://git.openjdk.java.net/skara/pull/394