4clojure #23 : reversing a sequence

gistfile1.txt

(defn widdershins [coll]
  (letfn [(flip [tocoll fromcoll]
            (if (empty? fromcoll)
              tocoll
              (flip (cons (first fromcoll) tocoll) (rest fromcoll))
            )   
         )]  
    (flip [] coll)
  )
)
; (widdershins [ 1 2 3] => (1 2 3)

; sigh. 

; (into () %)