cleanup: use ZIPLIST_ENTRY_END macro instead of 1
update macros ZIPLIST_ENTRY_END i think the right definition is ((zl)+intrev32ifbe(ZIPLIST_BYTES(zl))-ZIPLIST_END_SIZE)
/* Return the pointer to the last byte of a ziplist, which is, the
* end of ziplist FF entry. */
-#define ZIPLIST_ENTRY_END(zl) ((zl)+intrev32ifbe(ZIPLIST_BYTES(zl))-1)
+#define ZIPLIST_ENTRY_END(zl) ((zl)+intrev32ifbe(ZIPLIST_BYTES(zl))-ZIPLIST_END_SIZE)
/* Increment the number of items field in the ziplist header. Note that this
* macro should never overflow the unsigned 16 bit integer, since entries are
