Change thrift require_once to include_once

Summary: As per Lucas' request

Reviewed By: lucas


git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@664803 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/lib/php/src/transport/TSocketPool.php b/lib/php/src/transport/TSocketPool.php
index 58f237a..1bb2e49 100644
--- a/lib/php/src/transport/TSocketPool.php
+++ b/lib/php/src/transport/TSocketPool.php
@@ -1,7 +1,7 @@
 <?php
 
 /** Inherits from Socket */
-require_once $GLOBALS['THRIFT_ROOT'].'/transport/TSocket.php';
+include_once $GLOBALS['THRIFT_ROOT'].'/transport/TSocket.php';
 
 /**
  * This library makes use of APC cache to make hosts as down in a web