map -package:containers -package:bytestring -package:base-compat-batteries -package:incipit-base -is:exact -package:blaze-html -package:dense-linear-algebra -package:hedgehog -package:insert-ordered-containers is:exact -package:Cabal-syntax -package:charset package:case-insensitive
Transform the original string-like value but keep it case insensitive.