printer: fix assigning equal sign for multi keys

printer/nodes.go

@@ -50,7 +50,7 @@ func (p *printer) objectItem(o *ast.ObjectItem) []byte {
 		buf.WriteByte(blank)
 
 		// reach end of key
-		if i == len(o.Keys)-1 {
+		if i == len(o.Keys)-1 && len(o.Keys) == 1 {
 			buf.WriteString("=")
 			buf.WriteByte(blank)
 		}

printer/testdata/complexhcl.golden

@@ -1,22 +1,22 @@
-variable "foo" = {
+variable "foo" {
 	default = "bar"
 	description = "bar"
 }
 
-provider "aws" = {
+provider "aws" {
 	access_key = "foo"
 	secret_key = "bar"
 }
 
-provider "do" = {
+provider "do" {
 	api_key = "${var.foo}"
 }
 
-resource "aws_security_group" "firewall" = {
+resource "aws_security_group" "firewall" {
 	count = 5
 }
 
-resource aws_instance "web" = {
+resource aws_instance "web" {
 	ami = "${var.foo}"
 	security_groups = [
 		"foo", 
@@ -28,12 +28,12 @@ resource aws_instance "web" = {
 	}
 }
 
-resource "aws_instance" "db" = {
+resource "aws_instance" "db" {
 	security_groups = "${aws_security_group.firewall.*.id}"
 	VPC = "foo"
 	depends_on = [	"aws_instance.web"]
 }
 
-output "web_ip" = {
+output "web_ip" {
 	value = "${aws_instance.web.private_ip}"
 }