fix doctest of cupy/testing/helper.py
@@ -146,7 +146,7 @@ def numpy_cupy_allclose(rtol=1e-7, atol=0, err_msg='', verbose=True,
>>> import unittest
>>> from cupy import testing
- ... @testing.gpu
+ >>> @testing.gpu
... class TestFoo(unittest.TestCase):
...
... @testing.numpy_cupy_allclose()
