Changes for clojure.core/take-last

Dmitry Kakurin on Mon, 30 May 2011
user=> (take-last 2 [1 2 3 4])
(3 4)

user=> (take-last 2 [4])
(4)

user=> (take-last 2 [])
nil

user=> (take-last 2 nil)
nil
zkim on Sun, 26 Sep 2010
user=> (take-last 2 [1 2 3 4])
(3 4)
gstamp on Wed, 28 Jul 2010
user> (take-last 2 [1 2 3 4])
(3 4)