Fixed memleak (severs)

Author: laruence

package.xml

@@ -118,6 +118,7 @@ Fixes
     <file role='test' name='session_basic.phpt'/>
     <file role='test' name='session_basic2.phpt'/>
     <file role='test' name='session_basic3.phpt'/>
+    <file role='test' name='session_persistent.phpt'/>
     <file role='test' name='set_large.phpt'/>
     <file role='test' name='setoptions.phpt'/>
     <file role='test' name='touch_binary.phpt'/>

php_memcached_session.c

@@ -351,6 +351,7 @@ PS_OPEN_FUNC(memcached)
 				else {
 					efree(plist_key);
 					PS_SET_MOD_DATA(memc);
+					memcached_server_list_free(servers);
 					return SUCCESS;
 				}
 			}

tests/session_persistent.phpt

@@ -0,0 +1,27 @@
+--TEST--
+Session persistent
+--SKIPIF--
+<?php 
+include dirname(__FILE__) . "/skipif.inc"; 
+if (!Memcached::HAVE_SESSION) print "skip";
+?>
+--INI--
+session.save_handler=memcached
+memcached.sess_persistent=1
+--FILE--
+<?php
+include dirname (__FILE__) . '/config.inc';
+ini_set ('session.save_path', MEMC_SERVER_HOST . ':' . MEMC_SERVER_PORT);
+
+session_start();
+$_SESSION['test']=true;
+session_write_close();
+session_start();
+var_dump($_SESSION);
+session_write_close();
+?>
+--EXPECT--
+array(1) {
+  ["test"]=>
+  bool(true)
+}