updated formatting

tests/test_cli.py

@@ -303,9 +303,9 @@ def test_train_pasa_montgomery_from_checkpoint(temporary_basedir):
             )
 
         extra_keyword = "Saving checkpoint"
-        assert extra_keyword in logging_output, (
-            f"String '{extra_keyword}' did not appear at least once in the output:\nOutput:\n{logging_output}"
-        )
+        assert (
+            extra_keyword in logging_output
+        ), f"String '{extra_keyword}' did not appear at least once in the output:\nOutput:\n{logging_output}"
 
 
 @pytest.mark.skip_if_rc_var_not_set("datadir.montgomery")