Cabal revisions of heaps-0.3.4.1

Hackage metadata revisions edit the .cabal file after upload; each diff below is one revision.

 name:           heaps version:        0.3.4.1+x-revision: 1 license:        BSD3 license-file:   LICENSE author:         Edward A. Kmett  custom-setup   setup-depends:-    base          >= 4.3 && <5,+    base          >= 4.3 && <4.11,     Cabal         >= 1.10,     cabal-doctest >= 1 && <1.1  library   exposed-modules: Data.Heap   build-depends:-    base >= 4 && < 6+    base >= 4 && < 4.11   hs-source-dirs: src   ghc-options: -O2