Apply fixes from StyleCI

src/Address.php

@@ -63,7 +63,7 @@ public static function boot()
      */
     public function geocode()
     {
-        if (! empty($this->postcode)) {
+        if (!empty($this->postcode)) {
             $string[] = $this->street;
             $string[] = sprintf('%s, %s %s', $this->city, $this->state, $this->postcode);
             $string[] = $this->country_name;

src/HasAddresses.php

@@ -30,7 +30,7 @@ public function addresses()
      */
     public function primaryAddress($address = null)
     {
-        if (! empty($address)) {
+        if (!empty($address)) {
             $address->update([
                 'is_primary' => 1, 'is_billing' => 0, 'is_shipping' => 0,
             ]);
@@ -46,7 +46,7 @@ public function primaryAddress($address = null)
      */
     public function billingAddress($address = null)
     {
-        if (! empty($address)) {
+        if (!empty($address)) {
             $address->update([
                 'is_primary' => 0, 'is_billing' => 1, 'is_shipping' => 0,
             ]);
@@ -62,7 +62,7 @@ public function billingAddress($address = null)
      */
     public function shippingAddress($address = null)
     {
-        if (! empty($address)) {
+        if (!empty($address)) {
             $address->update([
                 'is_primary' => 0, 'is_billing' => 0, 'is_shipping' => 1,
             ]);