systemd-python: allow Reader to be used as a context manager
systemd-python: allow Reader to be used as a context manager

keszybz/python-systemd,Awesense/python-systemd,systemd/python-systemd,keszybz/python-systemd,systemd/python-systemd,Awesense/python-systemd,again4you/python-systemd,again4you/python-systemd,Awesense/python-systemd