samba: wheezy-backports init script missing runlevels

[Scott Talbert <swt@techie.net>]

Package: samba
Version: 2:4.1.17+dfsg-1~bpo70+1

The /etc/init.d/samba script in the wheezy-backports package is missing 
runlevels:
# head /etc/init.d/samba
#!/bin/sh

### BEGIN INIT INFO
# Provides:          samba
# Required-Start:
# Required-Stop:
# Default-Start:
# Default-Stop:
# Short-Description: ensure Samba daemons are started (nmbd and smbd)
### END INIT INFO


This causes update-rc.d to fail:
# update-rc.d samba disable
update-rc.d: using dependency based boot sequencing
update-rc.d: error: samba Default-Start contains no runlevels, aborting.