test/socket/test_addrinfo.rb: extract Errno::EADDRINUSE as a method.
test/socket/test_socket.rb: ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@29996 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
test/socket/test_addrinfo.rb: extract Errno::EADDRINUSE as a method.
test/socket/test_socket.rb: ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@29996 b2dd03c8-39d4-4d8f-98ff-823fe69b080e