[1.7.x] Fixed #23342 -- Clarified warning about naive time objects.
[1.7.x] Fixed #23342 -- Clarified warning about naive time objects.

Thanks to apollo13 for suggested wording.

Backport of b7336ec179 from master

jyotsna1820/django,jyotsna1820/django,oscaro/django,jyotsna1820/django,oscaro/django,oscaro/django,oscaro/django,jyotsna1820/django