- change description of a dns_options EDNS option, add alias EDNS0
- ignore trailing dot in a domain name which sometimes still creep in
- change word 'response' -> 'reply' in DNS debugging messages (RFC 1035)
- test for truncated DNS reply, issue an info-level warning
- debugging: trying to track down a bug in Net::DNS which can
  return a DNS packet with an empty question section

Submitted by: Mark


git-svn-id: https://svn.apache.org/repos/asf/spamassassin/trunk@1446278 13f79535-47bb-0310-9956-ffa450edef68