Make sure two blank lines around _fund_service function

Author: ggqlq

Lib/test/test_socket.py

@@ -202,6 +202,7 @@ def _have_socket_hyperv():
         s.close()
     return True
 
+
 def _find_service(expected_protocols,
                   services_file='/etc/services'):
     if not os.path.exists(services_file):
@@ -223,6 +224,7 @@ def _find_service(expected_protocols,
                 return service_name
     return None
 
+
 @contextlib.contextmanager
 def socket_setdefaulttimeout(timeout):
     old_timeout = socket.getdefaulttimeout()