bpo-30592: Fixed error messages for some builtins.

[serhiy-storchaka]

Error messages when pass keyword arguments to some builtins that
don't support keyword arguments contained double parenthesis: "()()".
The regression was intriduced by bpo-30534.

[SylvainDe]

Looks good to me!
Do you reckon I'd make sense to have a unit test for a least one of these functions ?
Also, should we improve the _PyArg_NoKeywords documentation to mention that the provided function name is supposed to not have the parenthesis?

[serhiy-storchaka]

This PR fixed 23 functions and methods. Tests for just one function wouldn't cover other cases, and adding 23 tests looks excessively. But adding tests for general cases which cover a lot of function is welcome.

Also, should we improve the _PyArg_NoKeywords documentation to mention that the provided function name is supposed to not have the parenthesis?

There is no documentation for _PyArg_NoKeywords except a comment before its definition. And since _PyArg_NoKeywords immediately follows a comment, I don't think that adding some words in a comment would add more clarity to the sources.