Merge pull request #4232 from phadej/whitelist-hspec-discover

Add whitelist hspec-discover

Author: phadej

Cabal/Distribution/Simple/BuildToolDepends.hs

@@ -39,7 +39,8 @@ desugarBuildTool pkg led =
     toolName = mkUnqualComponentName name
     foundLocal = toolName `elem` map exeName (executables pkg)
     whitelist = [ "hscolour", "haddock", "happy", "alex", "hsc2hs", "c2hs"
-                , "cpphs", "greencard"]
+                , "cpphs", "greencard", "hspec-discover"
+                ]
     whiteMap  = Map.fromList $ flip map whitelist $ \n ->
       (n, ExeDependency (mkPackageName n) (mkUnqualComponentName n) reqVer)