Revert 3270 patch: self._address is in pretty widespread use, need to revisit

Lib/multiprocessing/connection.py

@@ -215,14 +215,16 @@ class SocketListener(object):
         self._socket = socket.socket(getattr(socket, family))
         self._socket.bind(address)
         self._socket.listen(backlog)
+        address = self._socket.getsockname()
+        if type(address) is tuple:
+            address = (socket.getfqdn(address[0]),) + address[1:]
+        self._address = address
         self._family = family
         self._last_accepted = None
 
-        sub_debug('listener bound to address %r', self._address)
-
         if family == 'AF_UNIX':
             self._unlink = Finalize(
-                self, os.unlink, args=(self._address,), exitpriority=0
+                self, os.unlink, args=(address,), exitpriority=0
                 )
         else:
             self._unlink = None