self.log_date.strftime in section "Python/Django Tutorial" chapter "Define models"

[matiaso11]

In section "Python/Django Tutorial" chapter "Define models" there is pylint [E1101]:
[pylint] Instance of 'DateTimeField' has no 'strftime'...

Refering to stackoverflow
"timezone.localtime" function has fixed the problem.

[kraigb]

Thanks for that suggestion! I'll admit I hadn't noticed the linter detail, so I'll fix it in the sample and the docs both.