static void add_extra_have(struct extra_have_objects *extra, unsigned char *sha1)
{
	ALLOC_GROW(extra->array, extra->nr + 1, extra->alloc);
	hashcpy(&(extra->array[extra->nr][0]), sha1);
	extra->nr++;
}
static void add_extra_have(struct extra_have_objects *extra, unsigned char *sha1)
{
	ALLOC_GROW(extra->array, extra->nr + 1, extra->alloc);
	hashcpy(&(extra->array[extra->nr][0]), sha1);
	extra->nr++;
}