map -package:containers -package:bytestring -package:Cabal-syntax -package:base -package:basement -package:integration -package:dlist -package:psqueues -package:filepath -package:regex-tdfa -package:blaze-html -package:case-insensitive is:exact -package:incipit-base -package:hedgehog -package:ghc -package:base-compat-batteries package:foldl

Fold pairs into a map.