When we configure warnings as errors, users see error messages like this:
def test():
> warnings.warn(pytest.PytestWarning("some warning"))
E _pytest.warning_types.PytestWarning: some warning
This is a problem because suggests the user should use `_pytest.warning_types.PytestWarning` to configure
their warning filters, which is not nice.
This commit changes the message to:
def test():
> warnings.warn(pytest.PytestWarning("some warning"))
E pytest.PytestWarning: some warning
Bruno Oliveira