openvpn: added line break to label
openvpn: added line break to label

Fixes: https://github.com/freedombox/Plinth/issues/816

kkampardi/Plinth,kkampardi/Plinth,harry-7/Plinth,vignanl/Plinth,harry-7/Plinth,kkampardi/Plinth,vignanl/Plinth,harry-7/Plinth,vignanl/Plinth,kkampardi/Plinth,vignanl/Plinth,vignanl/Plinth,harry-7/Plinth,harry-7/Plinth,kkampardi/Plinth