PPrint instance for (Maybe a).
PPrint instance for (Maybe a).

Ignore-this: 7d04ce78b0b37beee9494c50a8fe3e65

darcs-hash:20081128014737-26c35-a14bba241a26055f9977b9b6b4af7436cc182732

kirbyfan64/jhc,kirbyfan64/jhc,kirbyfan64/jhc,kirbyfan64/jhc