Error in signature of callproc() and execute()

[pauricthelodger]

Fixes #586

The default params () in the two NormalCursorWrapper methods should be None to match what django expects in the code block below. A bare cursor.execute(sql) will have params=() added to it by the Wrapper which fails to match the if in the code block below, causing the IndexError.

    def execute(self, sql, params=None):
        self.db.validate_no_broken_transaction()
        with self.db.wrap_database_errors:
            if params is None:
                return self.cursor.execute(sql)
            else:
>               return self.cursor.execute(sql, params)
E               IndexError: tuple index out of range

django/db/backends/utils.py:65: IndexError

This fix was done @kevingill1966 in their fork, I'm just making a PR to have it added =)

[pauricthelodger]

Example of a similar fix I did for the same issue in Scout a few years back, seems a lot of people did it the same way! =) scoutapp/scout_apm_python#43

[jkimbo]

👍 thanks

[jkimbo]

Released in v2.11.0