Fixed spelling of "consistent" in admin/options.py

            # Take the custom ModelForm's Meta.exclude into account only if the

            # ModelAdmin doesn't define its own.

            exclude.extend(self.form._meta.exclude)

        # if exclude is an empty list we pass None to be consistant with the

        # if exclude is an empty list we pass None to be consistent with the

        # default on modelform_factory

        exclude = exclude or None

        defaults = {