format, update test error message

Author: robertpfeiffer

src_c/surface.c

@@ -1418,13 +1418,11 @@ surf_convert(pgSurfaceObject *self, PyObject *args)
     if (!PyArg_ParseTuple(args, "|Oi", &argobject, &flags))
         return NULL;
 
-
     if (!argobject && !SDL_WasInit(SDL_INIT_VIDEO))
         return RAISE(pgExc_SDLError,
                      "cannot convert without format "
                      "when pygame.display is not initialized");
 
-
     SURF_INIT_CHECK(surf)
 
     pgSurface_Prep(self);

test/surface_test.py

@@ -1234,7 +1234,7 @@ def test_convert_init(self):
         filename = example_path(os.path.join("data", "alien3.png"))  # 8bit PNG
         surf8bit = pygame.image.load(filename)
 
-        self.assertRaisesRegex(pygame.error, "display initialized", surf.convert)
+        self.assertRaisesRegex(pygame.error, "display is not initialized", surf.convert)
 
         pygame.display.init()
         try: