docs: fix sphinx format warning
docs: fix sphinx format warning

build/lib.linux-x86_64-3.5/systemd/journal.py:docstring of systemd.journal.stream:15: WARNING: Literal block expected; none found.

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