I ran

 valgrind --leak-check=full --track-origins=yes ./src/freedroidRPG -b dialog

which got me 


    ==16964== 95 bytes in 7 blocks are definitely lost in loss record 712 of 1,394
    ==16964==    at 0x4C2740D: malloc (in
/usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
    ==16964==    by 0x6BAD341: strdup (in /lib/libc-2.14.1.so)
    ==16964==    by 0x42E9DD: decode_extension_label (map.c:591)
    ==16964==    by 0x4303B4: LoadShip (map.c:603)
    ==16964==    by 0x4594E8: validate_dialogs (chat.c:570)
    ==16964==    by 0x46C06C: dialog_test (benchmark.c:76)
    ==16964==    by 0x46C20E: benchmark (benchmark.c:218)
    ==16964==    by 0x4163B6: main (main.c:172)
     
as result (among other uninteresting stuff).

 r5117