Process dispaly 1 on windows

src/Worker.php

@@ -1450,7 +1450,7 @@ class Worker
             restore_error_handler();
 
             // Display UI.
-            static::safeEcho(str_pad($worker->name, 21) . str_pad($worker->getSocketName(), 36) . str_pad((string)$worker->count, 10) . "[ok]\n");
+            static::safeEcho(str_pad($worker->name, 21) . str_pad($worker->getSocketName(), 36) . str_pad('1', 10) . "[ok]\n");
             $worker->listen();
             $worker->run();
             static::$globalEvent->run();