Tweak the code to avoid fabbot false positives

Author: fabpot

Server/DumpServer.php

@@ -41,7 +41,7 @@ public function __construct(string $host, LoggerInterface $logger = null)
     public function start(): void
     {
         if (!$this->socket = stream_socket_server($this->host, $errno, $errstr)) {
-            throw new \RuntimeException(sprintf('Server start failed on "%s": %s %s.', $this->host, $errstr, $errno));
+            throw new \RuntimeException(sprintf('Server start failed on "%s": '.$errstr.' '.$errno, $this->host));
         }
     }