Django code styling fixes.

from django.contrib.sites.models import Site

from django.utils.translation import ugettext_lazy as _

class FlatPage(models.Model):

    url = models.CharField(_('URL'), max_length=100, validator_list=[validators.isAlphaNumericURL], db_index=True,

        help_text=_("Example: '/about/contact/'. Make sure to have leading and trailing slashes."))

        help_text=_("Example: 'flatpages/contact_page.html'. If this isn't provided, the system will use 'flatpages/default.html'."))

    registration_required = models.BooleanField(_('registration required'), help_text=_("If this is checked, only logged-in users will be able to view the page."))

    sites = models.ManyToManyField(Site)

    class Meta:

        db_table = 'django_flatpage'

        verbose_name = _('flat page')

        verbose_name_plural = _('flat pages')

        ordering = ('url',)

    class Admin:

        fields = (

            (None, {'fields': ('url', 'title', 'content', 'sites')}),