Log Message:
Update net/py-dns to 1.15.0.

* IDNA 2008 support is now available if the "idna" module has been
  installed and IDNA 2008 is requested.  The default IDNA behavior
  is still IDNA 2003.  The new IDNA codec mechanism is currently
  only useful for direct calls to dns.name.from_text() or
  dns.name.from_unicode(), but in future releases it will be
  deployed throughout dnspython, e.g. so that you can read a
  masterfile with an IDNA 2008 codec in force.

* By default, dns.name.to_unicode() is not strict about which
  version of IDNA the input complies with.  Strictness can be
  requested by using one of the strict IDNA codecs.

* Add AVC RR support.

* Some problems with newlines in various output modes have been
  addressed.

* dns.name.to_text() now returns text and not bytes on Python 3.x

* More miscellaneous fixes for the Python 2/3 codeline merge.