Bug#826201: debian-edu-config: usage instructions contained in ldap-debian-edu-install fail to work with systemd

[Wolfgang Schweer <wschweer@arcor.de>]

Package: debian-edu-config
Version: 1.818+deb8u1 1.903
Severity: important

The script 'ldap-debian-edu-install' can be used to setup LDAP from
scratch, instructions how to do it are contained in the script itself.
Among other commands, /etc/init.d/samba (stop|start) is recommended.

As the samba init script has been masked, it is no longer possible to
stop/start the daemon processes smbd and nmbd using sysv methods.
Setting up LDAP fails cause no feedback is given about this failure.

So these parts of the instructions should be replaced with systemd
methods.