IAX2 does not support IPv6 and getting such addresses from DNS can cause error
messages on the remote end involving bad IPv4 address casts in the presence of
IPv6/IPv4 tunnels. This patch ensures that IAX2 will not encounter IPv6
addresses via DNS queries.
(closes issue ASTERISK-18090)
git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.8@335320 65c4cc65-6c06-0410-ace0-fbb531ad65f3