lib/resolv.rb (Resolv::DNS#initialize): new option :nameserver_port.
(Resolv::DNS#each_resource): pass port number.
(Resolv::DNS#make_requester): ditto.
(Resolv::DNS::Config#lazy_initialize): initialize @nameserver_port
instead of @nameserver.
(Resolv::DNS::Config#single?): return port number addition to the
nameserver.
(Resolv::DNS::Config#generate_timeouts): use @nameserver_port.
(Resolv::DNS::Config#resolv): yield port number.
(Resolv::DNS#each_resource): pass port number.
(Resolv::DNS#make_requester): ditto.
(Resolv::DNS::Config#lazy_initialize): initialize @nameserver_port
instead of @nameserver.
(Resolv::DNS::Config#single?): return port number addition to the
nameserver.
(Resolv::DNS::Config#generate_timeouts): use @nameserver_port.
(Resolv::DNS::Config#resolv): yield port number.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26230 b2dd03c8-39d4-4d8f-98ff-823fe69b080e