Changes for clojure.core/rand-int

john.r.woodward on Mon, 23 Jul 2012
user=> (rand-int 30)
10

user=> (rand-int 30)
7

;compare with 
user=> (int (rand 30))
zkim on Sun, 26 Sep 2010
user=> (rand-int 30)
10

user=> (rand-int 30)
7
defn on Mon, 02 Aug 2010
(rand-int 30)
; => 10

(rand-int 30)
; => 7