Fixes test error
self = <test_iconv.TestIconv object at 0x7ffff52f3410>
completion = <CompletionResult []>
@pytest.mark.complete("iconv -")
def test_1(self, completion):
> assert completion
E assert <CompletionResult []>
../t/test_iconv.py:7: AssertionError
by applying upstream commit not present in a newer release.