zap_leaf_rehash_entry
static uint16_t *zap_leaf_rehash_entry(zap_leaf_t *l, uint16_t entry);
uint16_t *chunkp = zap_leaf_rehash_entry(l, chunk);
(void) zap_leaf_rehash_entry(nl, chunk);
(void) zap_leaf_rehash_entry(l, i);