adding blank function (multi-argument)

src/koans/about_functions.clj

@@ -17,5 +17,5 @@
           4 5))
 
   "Higher-order functions take function arguments"
-  (= 25 ((fn [f] (f 5))
+  (= 25 (___
-          (fn [n] (__ __ __)))))
+          (fn [n] (* n n)))))

src/path_to_enlightenment.clj

@@ -2,6 +2,7 @@
   (:use clojure.test))
 
 (def __ nil)
+(def ___ (fn [& args] args))
 
 (defmacro meditations [& forms]
   (let [pairs (partition 2 forms)]