cln: hlint: Fix redundant return warning.

.hlint.yaml

@@ -50,7 +50,6 @@
 - ignore: {name: "Redundant bang pattern"}
 - ignore: {name: "Use zipWith"}
 - ignore: {name: "Replace case with maybe"}
-- ignore: {name: "Redundant return"}
 - ignore: {name: "Avoid lambda using `infix`"}
 - ignore: {name: "Use <|>"}
 - ignore: {name: "Use zip"}

hledger-lib/Hledger/Read/Common.hs

@@ -986,7 +986,6 @@ lotpricep = label "ledger-style lot price" $ do
   lift skipNonNewlineSpaces
   char '}'
   when (doublebrace) $ void $ char '}'
-  return ()
 
 -- Parse a Ledger-style lot date [DATE], and ignore it.
 -- https://www.ledger-cli.org/3.0/doc/ledger3.html#Fixing-Lot-Prices .

hledger-lib/Hledger/Read/CsvReader.hs

@@ -1266,8 +1266,7 @@ csvFieldValue :: CsvRules -> CsvRecord -> CsvFieldName -> Maybe Text
 csvFieldValue rules record fieldname = do
   fieldindex <- if | T.all isDigit fieldname -> readMay $ T.unpack fieldname
                    | otherwise               -> lookup (T.toLower fieldname) $ rcsvfieldindexes rules
-  fieldvalue <- T.strip <$> atMay record (fieldindex-1)
-  return fieldvalue
+  T.strip <$> atMay record (fieldindex-1)
 
 -- | Parse the date string using the specified date-format, or if unspecified
 -- the "simple date" formats (YYYY/MM/DD, YYYY-MM-DD, YYYY.MM.DD, leading

hledger-lib/Hledger/Utils/String.hs

@@ -134,9 +134,8 @@ words' :: String -> [String]
 words' "" = []
 words' s  = map stripquotes $ fromparse $ parsewithString p s
     where
-      p = do ss <- (singleQuotedPattern <|> doubleQuotedPattern <|> patterns) `sepBy` skipNonNewlineSpaces1
+      p = (singleQuotedPattern <|> doubleQuotedPattern <|> patterns) `sepBy` skipNonNewlineSpaces1
           -- eof
-             return ss
       patterns = many (noneOf whitespacechars)
       singleQuotedPattern = between (char '\'') (char '\'') (many $ noneOf "'")
       doubleQuotedPattern = between (char '"') (char '"') (many $ noneOf "\"")

tools/generatejournal.hs

@@ -35,7 +35,6 @@ main = do
   let rates = [0.70, 0.71 .. 1.3]
   mapM_ (\(n,d,(a,b),c,p) -> putStr $ showtxn n d a b c p) $ take numtxns $ zip5 [1..] dates accts comms (drop 1 comms)
   mapM_ (\(d,rate) -> putStr $ showmarketprice d rate) $ take numtxns $ zip dates (cycle $ rates ++ init (tail (reverse rates)))
-  return ()
 
 showtxn :: Int -> Day -> String -> String -> Char -> Char -> String
 showtxn txnno date acct1 acct2 comm pricecomm =

tools/generatetimeclock.hs

@@ -20,7 +20,6 @@ main = do
   today <- getCurrentDay
   let startdate = addDays (-numentries) today
   mapM_ (putStr . showentry) [startdate..today]
-  return ()
 
 showentry d =
   printf "i %s 09:00:00 dummy\no %s 17:00:00\n" (show d) (show d)