format code

Author: rwifeng

src/Qiniu/Http/Client.php

@@ -85,18 +85,19 @@ private static function sendRequest($request)
             CURLOPT_CUSTOMREQUEST  => $request->method,
             CURLOPT_URL => $request->url
         );
+        
         if (!empty($request->headers)) {
             $headers = array();
             foreach ($request->headers as $key => $val) {
                 array_push($headers, "$key: $val");
             }
             $options[CURLOPT_HTTPHEADER] = $headers;
         }
+        curl_setopt($ch, CURLOPT_HTTPHEADER, array('Expect:'));
 
         if (!empty($request->body)) {
             $options[CURLOPT_POSTFIELDS] = $request->body;
         }
-        curl_setopt($ch, CURLOPT_HTTPHEADER, array('Expect:'));
         curl_setopt_array($ch, $options);
         $result = curl_exec($ch);
         $t2 = microtime(true);