socket: fix getaddrinfo to handle international domain names (instead of...

socket: fix getaddrinfo to handle international domain names (instead of calling stdlib's getaddrinfo)

--HG--
extra : transplant_source : %F6%A6E%E0%04_%ED%0B%00%3E%C2a%2B%C1AG%3F%9B%DD%A3

gevent/socket.py

@@ -695,6 +695,8 @@ else:
         to :mod:`dns` functions.
         """
         family, socktype, proto, _flags = args + (None, ) * (4 - len(args))
+        if isinstance(host, unicode):
+            host = host.encode('idna')
         if not isinstance(host, str) or '.' not in host or _ip4_re.match(host):
             return _socket.getaddrinfo(host, port, *args)