Fixed #8359 -- Add an admin log entry when creating a new user.

            if form.is_valid():

                new_user = form.save()

                msg = _('The %(name)s "%(obj)s" was added successfully.') % {'name': 'user', 'obj': new_user}

                self.log_addition(request, new_user)

                if "_addanother" in request.POST:

                    request.user.message_set.create(message=msg)

                    return HttpResponseRedirect(request.path)