This causes the test to fail. The assumption implicitly being made was
"if pid 1 is systemd, then every caller of _dbus_init_system_log() is a
systemd service" which is not valid for the regression test.
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=63163
Signed-off-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Reviewed-by: Colin Walters <walters@verbum.org>