Fix help for config trust add
Fix help for config trust add

Signed-off-by: Stéphane Graber <089afc6d81f66f1168a9849e15660feae286e024@ubuntu.com>

atxwebs/lxd,georghopp/lxd,pcdummy/lxd,mjeanson/lxd,erikmack/lxd,stgraber/lxd,hallyn/lxd,Malizor/lxd,atxwebs/lxd,jsavikko/lxd,stgraber/lxd,techtonik/lxd,techtonik/lxd,rrva/lxd,ericsnowcurrently/lxd,ericsnowcurrently/lxd,yura-pakhuchiy/lxd,benaryorg/lxd,rrva/lxd,atxwebs/lxd,ollie314/lxd,jensg-st/lxd,stgraber/lxd,yura-pakhuchiy/lxd,mjeanson/lxd,jsavikko/lxd,benaryorg/lxd,ericsnowcurrently/lxd,Skarlso/lxd,sl1pm4t/lxd,hallyn/lxd,pcdummy/lxd,akshaykarle/lxd,georghopp/lxd,dustinkirkland/lxd,yura-pakhuchiy/lxd,lxc/lxd,hallyn/lxd,jumpstarter-io/lxd,mikemccracken/lxd,beni55/lxd,akshaykarle/lxd,hallyn/lxd,stgraber/lxd,Skarlso/lxd,achanda/lxd,chrisglass/lxd,smoser/lxd,benaryorg/lxd,lxc/lxd,sl1pm4t/lxd,lxc/lxd,mikemccracken/lxd,chrisglass/lxd,beni55/lxd,georghopp/lxd,Skarlso/lxd,achanda/lxd,hallyn/lxd,Malizor/lxd,lxc/lxd,jumpstarter-io/lxd,erikmack/lxd,stgraber/lxd,smoser/lxd,mjeanson/lxd,rcj4747/lxd,jensg-st/lxd,achanda/lxd,sl1pm4t/lxd,lxc/lxd,rcj4747/lxd,ollie314/lxd,beni55/lxd,stgraber/lxd,pcdummy/lxd,chrisglass/lxd,stgraber/lxd,Malizor/lxd,smoser/lxd,dustinkirkland/lxd,jsavikko/lxd,Skarlso/lxd,erikmack/lxd,mikemccracken/lxd,jumpstarter-io/lxd,techtonik/lxd,rcj4747/lxd,dustinkirkland/lxd,lxc/lxd,hallyn/lxd,atxwebs/lxd,akshaykarle/lxd,jensg-st/lxd,rrva/lxd,ollie314/lxd,lxc/lxd