Update tests/test_modeling_common.py

Co-authored-by: amyeroberts <22614925+amyeroberts@users.noreply.github.com>

tests/test_modeling_common.py

@@ -3864,7 +3864,7 @@ def get_mean_reldiff(failcase, x, ref, atol, rtol):
                                 ):
                                     dummy_mask = torch.ones((self.model_tester.num_masks,))
 
-                                    # In case of additional token (like class) we define a custome `mask_length`
+                                    # In case of additional token (like class) we define a custom `mask_length`
                                     if hasattr(self.model_tester, "mask_length"):
                                         dummy_mask = torch.cat(
                                             [