Typo in patch_to docs

[gsganden]

The patch_to docs contain the following passage:

Additionally you can specify that the function you want to patch should be a class attribute with as_prop = False

@patch_to(_T5, as_prop=True)
def add_ten(self): return self + 10

t = _T5(4)
test_eq(t.add_ten, 14)

I take it that the text should say "as_prop=True" instead of "as_prop = False", so that it matches the example and the statement "you can specify that the function you want to patch should be a class attribute".