Memory leak in mysqltest on using die in perl block

perl;

die

EOF

Died at /data/bld/5.5-valgrind/mysql-test/var/tmpgJOAI7 line 1.

mysqltest: At line 1: command "perl" failed with error: 255  my_errno: 0  errno: 0

==19916== 128 bytes in 1 blocks are still reachable in loss record 1 of 1

==19916==    at 0x4C2BADF: malloc (vg_replace_malloc.c:298)

==19916==    by 0x4749D4: my_malloc (my_malloc.c:41)

==19916==    by 0x468F90: init_dynamic_string (string.c:39)

==19916==    by 0x41668A: check_command_args(st_command*, char const*, command_arg const*, int, char) (mysqltest.cc:1272)

==19916==    by 0x41D731: do_perl(st_command*) (mysqltest.cc:4516)

==19916==    by 0x426FD8: main (mysqltest.cc:9288)

==19916==