The call of a init-script (for instance /etc/init.d/nfsserver) with parameter
"status" returns 0 even if no services are running. 
The reason is that the systemctl wrapper in /etc/rc.status calls "systemctl
status ..." last, which everytime returns 0.

Using SYSTEMD_NO_WRAP=1 solves the problem, but many other packages (for
instance resource-agents) don't know this.

I think there are two possible solutions:
- solve systemctl status return code (see Bug 901796) 
- change /etc/rc.d to return the code from init-script