merge hlint changes from propellor

Utility/Exception.hs

@@ -39,10 +39,7 @@ catchBoolIO = catchDefaultIO False
 
 {- Catches IO errors and returns a Maybe -}
 catchMaybeIO :: MonadCatch m => m a -> m (Maybe a)
-catchMaybeIO a = do
-	catchDefaultIO Nothing $ do
-		v <- a
-		return (Just v)
+catchMaybeIO a = catchDefaultIO Nothing $ a >>= (return . Just)
 
 {- Catches IO errors and returns a default value. -}
 catchDefaultIO :: MonadCatch m => a -> m a -> m a

Utility/Misc.hs

@@ -136,7 +136,7 @@ hGetSomeString h sz = do
  - if this reap gets there first. -}
 reapZombies :: IO ()
 #ifndef mingw32_HOST_OS
-reapZombies = do
+reapZombies =
 	-- throws an exception when there are no child processes
 	catchDefaultIO Nothing (getAnyProcessStatus False True)
 		>>= maybe (return ()) (const reapZombies)

Utility/Process.hs

@@ -172,7 +172,7 @@ createBackgroundProcess p a = a =<< createProcess p
 -- returns a transcript combining its stdout and stderr, and
 -- whether it succeeded or failed.
 processTranscript :: String -> [String] -> (Maybe String) -> IO (String, Bool)
-processTranscript cmd opts input = processTranscript' cmd opts Nothing input
+processTranscript cmd opts = processTranscript' cmd opts Nothing
 
 processTranscript' :: String -> [String] -> Maybe [(String, String)] -> (Maybe String) -> IO (String, Bool)
 processTranscript' cmd opts environ input = do
@@ -378,11 +378,10 @@ createProcess p = do
 
 -- | Debugging trace for a CreateProcess.
 debugProcess :: CreateProcess -> IO ()
-debugProcess p = do
-	debugM "Utility.Process" $ unwords
-		[ action ++ ":"
-		, showCmd p
-		]
+debugProcess p = debugM "Utility.Process" $ unwords
+	[ action ++ ":"
+	, showCmd p
+	]
   where
 	action
 		| piped (std_in p) && piped (std_out p) = "chat"

Utility/Scheduled.hs

@@ -286,7 +286,7 @@ fromScheduledTime AnyTime = "any time"
 fromScheduledTime (SpecificTime h m) = 
 	show h' ++ (if m > 0 then ":" ++ pad 2 (show m) else "") ++ " " ++ ampm
   where
-	pad n s = take (n - length s) (repeat '0') ++ s
+	pad n s = replicate (n - length s) '0' ++ s
 	(h', ampm)
 		| h == 0 = (12, "AM")
 		| h < 12 = (h, "AM")