/lib/systemd/system/debian-fixup.service is in systemd 44-11+deb7u4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 | [Unit]
Description=Various fixups to make systemd work better on Debian
Before=var-run.mount var-lock.mount sysinit.target
After=remount-rootfs.service
DefaultDependencies=no
ConditionPathIsSymbolicLink=|!/etc/mtab
ConditionPathIsSymbolicLink=|!/var/run
ConditionPathIsSymbolicLink=|!/var/lock
[Service]
ExecStart=/lib/systemd/debian-fixup
Type=oneshot
RemainAfterExit=true
|