net/dns/resolver: fix staticcheck error.
var (
errFullQueue = errors.New("request queue full")
errMapNotSet = errors.New("domain map not set")
- errNotForwarding = errors.New("forwarding disabled")
errNotImplemented = errors.New("query type not implemented")
errNotQuery = errors.New("not a DNS query")
errNotOurName = errors.New("not a Tailscale DNS name")
