Fixed PHP 5.4 compatibility issue on WebClient

Author: vaites

src/Clients/WebClient.php

@@ -323,7 +323,7 @@ public function request($type, $file = null)
         }
 
         // parameters for cURL request
-        [$resource, $headers] = $this->getParameters($type, $file);
+        list($resource, $headers) = $this->getParameters($type, $file);
 
         // check the request
         $file = $this->checkRequest($type, $file);
@@ -341,7 +341,7 @@ public function request($type, $file = null)
         $options[CURLOPT_URL] = $this->getUrl() . "/$resource";
 
         // get the response and the HTTP status code
-        [$response, $status] = $this->exec($options);
+        list($response, $status) = $this->exec($options);
 
         // reduce memory usage closing cURL resource
         if(isset($options[CURLOPT_INFILE]) && is_resource($options[CURLOPT_INFILE]))