Avoid false positive for arguments-differ when (*args, **kwargs) idiom is used

[kczapla]

No description provided.

[benf-wspdigital]

Thanks for this implementation.

Please write a proper commit message: the message should describe what the change is. (You can also mention “fixes issue #NNN”, but do that after describing what the change does.)

Please write a description on this request; edit the first message and describe what this request is and why it should go in.

Please address the failures of automated checks.

[PCManticore]

Thank you for the PR @kczapla . As @benf-wspdigital mentioned, this would also need some tests to make sure this change makes sense. In the meantime I'm closing this PR. Feel free to resubmit once you have a more fleshed out PR.