/etc/init.d/udev-finish is in udev 215-17+deb8u7.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | #!/bin/sh -e
### BEGIN INIT INFO
# Provides: udev-finish
# Required-Start: udev $local_fs
# Required-Stop:
# Default-Start: S
# Default-Stop:
# Short-Description: Copy rules generated while the root was ro
### END INIT INFO
PATH="/sbin:/bin"
. /lib/lsb/init-functions
case "$1" in
start) ;;
stop|restart|force-reload) exit 0 ;;
*) echo "Usage: $0 {start|stop|restart|force-reload}" >&2; exit 1 ;;
esac
exec /lib/udev/udev-finish
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