baseserver: minor fix in exception message

--HG--
extra : transplant_source : %1D%C9%27K%9E%C6%1E%AD%5D%FF%7C%DEh%26%87%3Eb%90%F9%B4

gevent/baseserver.py

@@ -47,7 +47,7 @@ class BaseServer(object):
     def set_listener(self, listener, backlog=None):
         if hasattr(listener, 'accept'):
             if hasattr(listener, 'do_handshake'):
-                raise TypeError('Expected a regular socket, not SSLObject: %r' % (listener, ))
+                raise TypeError('Expected a regular socket, not SSLSocket: %r' % (listener, ))
             if backlog is not None:
                 raise TypeError('backlog must be None when a socket instance is passed')
             self.address = listener.getsockname()