Specify system-devel@ as the maintainers

Author: keszybz

setup.py

@@ -34,6 +34,8 @@
        version = version,
        description = 'Native interface to the facilities of systemd',
        author_email = '[email protected]',
+       maintainer = 'systemd developers',
+       maintainer_email = '[email protected]',
        url = 'https://github.com/systemd/python-systemd',
        license = 'LGPLv2+',
        classifiers = [