this needs to be unicode in order for translation to ocurr, not str

[Lacrymology]

I was getting this rendered:

<label for="id_accept_terms"><django.utils.functional.__proxy__ object at 0x10d777750></label>

also, maybe this should be using ugettext instead of ugettext_lazy, since this happens at render time, not on the setup phase

[mitar]

Thanks.