Log Message:
Update net/powerdns-recursor to 3.7.3.
Add SMF support.
Defuzz patches.

PowerDNS Recursor 3.7.3
- Limit the maximum length of a qname
- pdnssec: check for glue and delegations in parent zones

PowerDNS Recursor 3.7.2
- Fix handling of forward references in label compressed packets;
  fixes CVE-2015-1868.
- Minor improvements and bugfixes.

PowerDNS Recursor 3.7.1
- New root-nx-trust flag makes PowerDNS generalize NXDOMAIN responses
  from the root-servers
- getregisteredname() for Lua, which turns 'www.bbc.co.uk' into 'bbc.co.uk'
- Lua preoutquery filter
- Lua IP-based filter (ipfilter) before parsing packets
- iputils class for Lua, to quickly process IP addresses and netmasks
  in their native format
- getregisteredname function for Lua, to find the registered domain
  for a given name
- Various new ringbuffers: top-servfail-remotes, top-largeanswer-remotes,
  top-servfail-queries
- Minor improvements and bugfixes.

PowerDNS Recursor 3.6.2
- Minor improvements and bugfixes.

PowerDNS Recursor 3.6.1
- Fix for a crash under a specific sequence of packets.

PowerDNS Recursor 3.6.0
- Implement minimum-ttl-override config setting, plus runtime configurability
  via 'rec_control set-minimum-ttl'.
- Lots of work on the JSON API, which is exposed via Aki Tuomi's 'yahttp'.
- Lua modules can now use 'pdnslog(INFO..')
- Adopt any-to-tcp feature to the recursor.
- Implement built-in statistics dumper using the 'carbon' protocol, which
  is also understood by metronome (our mini-graphite). Use 'carbon-server',
  'carbon-ourname' and 'carbon-interval' settings.
- New setting 'udp-truncation-threshold' to configure from how many bytes
  we should truncate. commit a09a8ce.
- Proper support for CHaos class for CHAOS TXT queries.
- Added support for Lua scripts to drop queries w/o further processing.
- Kevin Holly added qtype statistics to recursor and rec_control.
- Add support for include-files in configuration, also reload ACLs and zones
  defined in them.
- Paulo Anes contributed server-down-max-fails which helps combat
  Recursive DNS based amplification attacks.
- Implement "followCNAMERecords" feature in the Lua hooks.
- Minor improvements and bugfixes.

PowerDNS Recursor 3.5.3
- This is a bugfix and performance update to 3.5.2. It brings serious
  performance improvements for dual stack users.

PowerDNS Recursor 3.5.2
- This is a stability and bugfix update to 3.5.1. It contains important
  fixes that improve operation for certain domains.

PowerDNS Recursor 3.5.1
- This is a stability and bugfix update to 3.5.

PowerDNS Recursor 3.5
- The local zone server now understands wildcards.
- The Lua postresolve and nodata hooks.
- A new feature, rec_control trace-regex allows the tracing of lookups
  for specific names
- A new setting, export-etc-hosts-search-suffix, adds a configurable
  suffix to names imported from /etc/hosts
- Minor improvements & bugfixes

PowerDNS Recursor 3.3.1
- Small number of important fixes, adds some memory usage statistics,
  but no new features