Print pretty message on lookup failure
Print pretty message on lookup failure

If we forget to link a container or it simply doesn't exist then we'll get a
host lookup error.. so we catch that and make it pretty! :)

mzagozen/vrnetlab,plajjan/vrnetlab,bdreisbach/vrnetlab,holmahenkel/vrnetlab,mzagozen/vrnetlab,holmahenkel/vrnetlab,bdreisbach/vrnetlab,plajjan/vrnetlab