Update src/Browser.php

Co-authored-by: Christian Lück <[email protected]>

Author: 51imyyy

src/Browser.php

@@ -24,7 +24,7 @@ class Browser
     private $baseUrl;
     private $protocolVersion = '1.1';
     private $defaultHeaders = array(
-        'User-Agent'    => 'ReactPHP/1',
+        'User-Agent' => 'ReactPHP/1'
     );
 
     /**