fix error in review

Author: Ying

tests/python/unittest/test_numpy_op.py

@@ -1095,13 +1095,7 @@ def hybrid_forward(self, F, a):
     types = ['float64', 'float32', 'float16', 'int64', 'int32', 'int8']
     for oneType in types:
         for hybridize in [True, False]:
-            for shape in [(),
-                          (2,),
-                          (2, 2),
-                          (1, 2, 3),
-                          (3, 0),
-                          (1, 0, 2)
-                          ]:
+            for shape in [(), (2,), (2, 2), (1, 2, 3), (3, 0), (1, 0, 2)]:
                 test_ravel = TestRavel()
                 if hybridize:
                     test_ravel.hybridize()