list-like type supporting O(1) append
differences lists: a list-like type supporting O(1) append. Useful for
efficient logging and pretty printing, (e.g. with the Writer monad),
where list append quickly becomes too expensive.

Maintainer: The OpenBSD ports mailing-list <ports@openbsd.org>

WWW: https://hackage.haskell.org/package/dlist
