Cabal revisions of pipes-4.1.8

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

 Name: pipes
 Version: 4.1.8
+x-revision: 1
 Cabal-Version: >= 1.10
 Build-Type: Simple
 License: BSD3
 
     HS-Source-Dirs: src
     Build-Depends:
-        base         >= 4.4     && < 5  ,
+        base         >= 4.4     && < 4.11,
         transformers >= 0.2.0.0 && < 0.6,
         mmorph       >= 1.0.0   && < 1.1,
         mtl          >= 2.1     && < 2.3