www/py-gandi.cli: Restore patches to setup.py

Restore the patches to the setup.py file removed in r419220 [1], as
these changes have not been upstreamed and removing them breaks the
test target, which attempts to install dependencies such as tox &
nose via setuptools, and which aren't required to run tests.

[1] https://svnweb.freebsd.org/changeset/ports/419220

pointyhat: bapt