Resolve undefined classes in phpDoc

src/Client.php

@@ -1334,7 +1334,7 @@ protected function doRequest(Http $uri, $method, $secure = false, $headers = arr
      * @param string $password
      * @param string $type
      * @return string
-     * @throws Zend\Http\Client\Exception\InvalidArgumentException
+     * @throws Client\Exception\InvalidArgumentException
      */
     public static function encodeAuthHeader($user, $password, $type = self::AUTH_BASIC)
     {