Move copy of slice inside if statements so there isn't an empty element at the end if a custom failsafe has been provided for wireguard
Move copy of slice inside if statements so there isn't an empty element at the end if a custom failsafe has been provided for wireguard

Signed-off-by: Kris Gambirazzi <8a262bd8dc9c40c1492795c3495ace3081e455af@transferwise.com>

neiljerram/felix,neiljerram/felix,Metaswitch/calico,Metaswitch/calico,neiljerram/felix,neiljerram/felix