[FIX] pep8 errors generated by odoo.py scaffold

Using the `odoo.py scaffold` command generates some python file which contain PEP8 errors.
Since the [OCA review guidelines](pad.openerp.com/p/community-review) requires code be PEP8 compliant, it is important that the templates be compliant too.

Signed-off-by: Sandy Carter <sandy.carter@savoirfairelinux.com>