Log Message:
net/rbldnsd: Update to 0.998

0.998 (05 Dec 2015)
- bugfix: correctly handle V4MAPPED (v4 in v6) addresses, the
  original v6 prefix was wrong.  Thanks to Alex Lasoriti for
  finding the issue
- bugfix: sometimes IP4-based datasets gave false positives when
  an IP6 dataset were present, and it was also possible to have
  false positive in IP6 datasets.  Both has been fixed.