Description:
------------
run built-in server with valgrind:
USE_ZEND_ALLOC=0 C=0 valgrind --leak-check=full  php -S db-sf-
maybach.db01.baidu.com:8964 

then request a 404 page


Test script:
---------------
none

Expected result:
----------------
no memory lost 

Actual result:
--------------
==9611== 26 bytes in 1 blocks are definitely lost in loss record 7 of 72
==9611==    at 0x490514E: malloc (vg_replace_malloc.c:195)
==9611==    by 0x302AF6FC91: strdup (in /lib64/tls/libc-2.3.4.so)
==9611==    by 0x9C27E1: get_last_error (php_cli_server.c:285)
==9611==    by 0x9C7EE7: php_cli_server_send_error_page (php_cli_server.c:1702)
==9611==    by 0x9C8CFE: php_cli_server_begin_send_static 
(php_cli_server.c:1849)
==9611==    by 0x9C9C22: php_cli_server_dispatch (php_cli_server.c:1978)
==9611==    by 0x9CA1C2: php_cli_server_recv_event_read_request 
(php_cli_server.c:2142)
==9611==    by 0x9CA504: php_cli_server_do_event_for_each_fd_callback 
(php_cli_server.c:2233)
==9611==    by 0x9C5BCE: php_cli_server_poller_iter_on_active 
(php_cli_server.c:753)
==9611==    by 0x9CA571: php_cli_server_do_event_for_each_fd 
(php_cli_server.c:2254)
==9611==    by 0x9CA5C5: php_cli_server_do_event_loop (php_cli_server.c:2264)
==9611==    by 0x9CA8A7: do_cli_server (php_cli_server.c:2365)
==9611==