[HttpClient] minor change

Author: nicolas-grekas

Internal/CurlClientState.php

@@ -89,6 +89,7 @@ public function reset()
                 curl_multi_setopt($this->handle, \CURLMOPT_PUSHFUNCTION, null);
             }
 
+            curl_multi_close($this->handle);
             $this->__construct($this->maxHostConnections, $this->maxPendingPushes);
         }
     }

Response/CurlResponse.php

@@ -275,7 +275,8 @@ private static function perform(ClientState $multi, array &$responses = null): v
         try {
             self::$performing = true;
             $active = 0;
-            while (\CURLM_CALL_MULTI_PERFORM === ($err = curl_multi_exec($multi->handle, $active)));
+            while (\CURLM_CALL_MULTI_PERFORM === ($err = curl_multi_exec($multi->handle, $active))) {
+            }
 
             if (\CURLM_OK !== $err) {
                 throw new TransportException(curl_multi_strerror($err));