hlint hack.

Language/Haskell/GhcMod/Cradle.hs

@@ -1,5 +1,3 @@
-{-# LANGUAGE BangPatterns #-}
-
 module Language.Haskell.GhcMod.Cradle (
     findCradle
   , findCradleWithoutSandbox

Language/Haskell/GhcMod/Debug.hs

@@ -33,7 +33,7 @@ debug opt cradle fileName = do
             return simpleCompilerOption
     void $ initializeFlagsWithCradle opt cradle gopts True
     setTargetFiles [fileName]
-    mglibdir <- liftIO $ getSystemLibDir
+    mglibdir <- liftIO getSystemLibDir
     return [
         "Root directory:      " ++ rootDir
       , "Current directory:   " ++ currentDir

Language/Haskell/GhcMod/GhcPkg.hs

@@ -77,12 +77,12 @@ ghcPkgList dbs = words <$> readProcess "ghc-pkg" opts ""
 -- | Get options needed to add a list of package dbs to ghc-pkg's db stack
 ghcPkgDbStackOpts :: [GhcPkgDb] -- ^ Package db stack
                   -> [String]
-ghcPkgDbStackOpts dbs = (ghcPkgDbOpt `concatMap` dbs)
+ghcPkgDbStackOpts dbs = ghcPkgDbOpt `concatMap` dbs
 
 -- | Get options needed to add a list of package dbs to ghc's db stack
 ghcDbStackOpts :: [GhcPkgDb] -- ^ Package db stack
                -> [String]
-ghcDbStackOpts dbs = (ghcDbOpt `concatMap` dbs)
+ghcDbStackOpts dbs = ghcDbOpt `concatMap` dbs
 
 ghcPkgDbOpt :: GhcPkgDb -> [String]
 ghcPkgDbOpt GlobalDb = ["--global"]