Fix test TestClientConfigCommand_UpdateServers()
Fix test TestClientConfigCommand_UpdateServers()

Now that hostnames are validated on input, switch to IPs since they
bypass DNS resolution.

xytis/nomad,dvusboy/nomad,dvusboy/nomad,barnardb/nomad,frundh/nomad,jorgemarey/nomad,Ashald/nomad,dbresson/nomad,hashicorp/nomad,burdandrei/nomad,mattyr/nomad,barnardb/nomad,achanda/nomad,Ashald/nomad,mattyr/nomad,achanda/nomad,frundh/nomad,jorgemarey/nomad,kmalec/nomad,diptanu/nomad,dvusboy/nomad,martin416/nomad,hashicorp/nomad,barnardb/nomad,xytis/nomad,kmalec/nomad,frundh/nomad,nak3/nomad,diptanu/nomad,dbresson/nomad,diptanu/nomad,mattyr/nomad,frundh/nomad,dbresson/nomad,hooklift/nomad,xytis/nomad,xytis/nomad,achanda/nomad,jorgemarey/nomad,frundh/nomad,diptanu/nomad,hooklift/nomad,hooklift/nomad,burdandrei/nomad,burdandrei/nomad,martin416/nomad,xytis/nomad,kmalec/nomad,burdandrei/nomad,nak3/nomad,mattyr/nomad,hooklift/nomad,barnardb/nomad,nak3/nomad,jorgemarey/nomad,dbresson/nomad,diptanu/nomad,dvusboy/nomad,hooklift/nomad,achanda/nomad,kmalec/nomad,jorgemarey/nomad,hooklift/nomad,mattyr/nomad,Ashald/nomad,nak3/nomad,barnardb/nomad,Ashald/nomad,Ashald/nomad,mattyr/nomad,hashicorp/nomad,mattyr/nomad,hashicorp/nomad,martin416/nomad,Ashald/nomad,achanda/nomad,dvusboy/nomad,martin416/nomad,kmalec/nomad,burdandrei/nomad,novilabs/nomad,barnardb/nomad,hashicorp/nomad,hooklift/nomad,xytis/nomad,Ashald/nomad,frundh/nomad,dbresson/nomad,dbresson/nomad,kmalec/nomad,dvusboy/nomad,xytis/nomad,burdandrei/nomad,novilabs/nomad,jorgemarey/nomad,novilabs/nomad,novilabs/nomad,frundh/nomad,dbresson/nomad,martin416/nomad,hashicorp/nomad,jorgemarey/nomad,nak3/nomad,martin416/nomad,diptanu/nomad,novilabs/nomad,martin416/nomad,barnardb/nomad,kmalec/nomad,dvusboy/nomad,achanda/nomad,novilabs/nomad,achanda/nomad,nak3/nomad,burdandrei/nomad,diptanu/nomad,nak3/nomad,novilabs/nomad