Fixed #10886: corrected a mistaken example in the admin docs.

    >>> from django.core import urlresolvers

    >>> c = Choice.objects.get(...)

    >>> change_url = urlresolvers.reverse('admin_polls_choice_change', (c.id,))

    >>> change_url = urlresolvers.reverse('admin_polls_choice_change', args=(c.id,))

However, if the admin instance was named ``custom``, you would need to call::

    >>> change_url = urlresolvers.reverse('custom_admin_polls_choice_change', (c.id,))

    >>> change_url = urlresolvers.reverse('custom_admin_polls_choice_change', args=(c.id,))