Cabal revisions of pure-zlib-0.6.4

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

 name:                pure-zlib version:             0.6.4+x-revision: 1 synopsis:            A Haskell-only implementation of zlib / DEFLATE homepage:            http://github.com/GaloisInc/pure-zlib license:             BSD3   hs-source-dirs:     src   build-depends:                       array              >= 0.4   && < 0.9,-                      base               >= 4.6   && < 5.0,+                      base               >= 4.6   && < 4.13,                       base-compat        >= 0.9.1 && < 0.11,                       bytestring         >= 0.10  && < 0.11,                       bytestring-builder >= 0.10  && < 0.11,