Revert "Pacify valgrind: it doesn't know realloc(p, 0) is equivalent to free(p)."
Revert "Pacify valgrind: it doesn't know realloc(p, 0) is equivalent to free(p)."

This reverts commit 86feee5b7b00b36758bb81ca3614daf61b99fc3c.

ccxvii/mujs,ccxvii/mujs,ccxvii/mujs,ccxvii/mujs