test_addrinfo.rb: special hostnames
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55211 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
test_addrinfo.rb: special hostnames
special hostnames, and .
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55211 b2dd03c8-39d4-4d8f-98ff-823fe69b080e