Changes for clojure.core/comment

zkim on Sun, 26 Sep 2010
;; The commented forms do not get executed
user=> (comment
         (functioncall-1)
         (functioncall-2))
nil
gstamp on Sat, 17 Jul 2010
The commented forms do not get executed

(comment
   (functioncall-1)
   (functioncall-2))