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matchable: single optional match in list added by klm` on Mon Sep 21 16:58:49 2015


I got this:

(let ((b #f))
  (match '(1 2) ;; <-- i want '(1) and '(1 2) to work
    ((or (a b) (a))
     (list a b))))

This works. But I don't like that I have to repeat `b` in the let above.
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