Too broad suppression of `unused-argument` warnings

[psrb]

pylint-django currently suppresses the unused-argument warning when a function/method contains an argument called request. The reason to ignore these warnings for an argument named request was discussed in #155 and implemented with commit e4c8fc7.

Unfortunately the warning is also suppressed for all other function arguments. Therefore every other unused argument of the function will not be reported. Unused arguments can be an indicator for bugs and these warnings should only be explicitly silenced.

Example

def user_detail(request, user_id):
    # nothing is done with user_id
    return JsonResponse({'username': 'steve'})

Pylint should issue a warning that user_id is unused. But because the function has an argument named request no warning is issued.

[fechnert]

We've encountered the same issue recently. Pylint was not able to detect that further arguments were unused.

It would be awesome to see the linked PR merged 👍