Fixed compilation warning about wrong type
Fixed compilation warning about wrong type

It fixes the following warnings:

  agent/config/builder.go:1201: Errorf format %q has arg s of wrong type *string
  agent/config/builder.go:1240: Errorf format %q has arg s of wrong type *string

hashicorp/consul,42wim/consul,42wim/consul,youhong316/consul,calgaryscientific/consul,42wim/consul,kingland/consul,vamage/consul,hashicorp/consul,calgaryscientific/consul,42wim/consul,scalp42/consul,youhong316/consul,vamage/consul,scalp42/consul,kingland/consul,hashicorp/consul,youhong316/consul,scalp42/consul,calgaryscientific/consul,hashicorp/consul,kingland/consul,youhong316/consul,scalp42/consul,42wim/consul,vamage/consul,kingland/consul,scalp42/consul,kingland/consul,vamage/consul,calgaryscientific/consul,vamage/consul,youhong316/consul,calgaryscientific/consul