[1.6.x] Fixed minor typos.
[1.6.x] Fixed minor typos.

Backport of 44d40ba521 from master

django-nonrel/django,felixjimenez/django,django-nonrel/django,redhat-openstack/django,dex4er/django,felixjimenez/django,felixjimenez/django,redhat-openstack/django,django-nonrel/django,dex4er/django,redhat-openstack/django,django-nonrel/django,redhat-openstack/django,dex4er/django,felixjimenez/django