S9 LIB  (sublist list integer1 integer2)  ==>  list

Return a fresh list formed from the members of LIST beginning with
index INTEGER1 (inclusive) and ending with index INTEGER2 (exclusive).

(sublist '(a b c d e) 2 4)  ==>  (c d)
(sublist '(a b c d e) 2 2)  ==>  ()
