reports possible false positive for unhandled overlapped packages, and doesn't show those legibly

[jfeltz]

example case: dash-haskell 1.1.0.1, fast-logger-2.4.0

parsing cabal file: fast-logger.cabal
warning: removed the following packages from processing due version range overlap:
  Dependency (PackageName {unPackageName = "base"}) (IntersectVersionRanges (UnionVersionRanges (ThisVersion (Version {versionBranch = [4,4], versionTags = []})) (LaterVersion (Version {versionBranch = [4,4], versionTags = []}))) (EarlierVersion (Version {versionBranch = [5], versionTags = []})))
  Dependency (PackageName {unPackageName = "bytestring"}) AnyVersion
  Dependency (PackageName {unPackageName = "directory"}) AnyVersion

processing: bytestring .. 
  ...
processing: base .. 
  ...