Comment # 3 on bug 1018185 from Frank Sundermeyer

Fixed for Leap 42.2 with
https://github.com/SUSE/doc-sle/commit/baad188

and for SLES 12 SP2 with
https://github.com/SUSE/doc-sle/commit/37270a569

Bothe fixes will be published with the next doc update.