Tidy up listDepsFormatOptsParser, for help output

.hlint.yaml

@@ -57,6 +57,7 @@
   # the GHC2021 set. Other extensions can be added, if need be.
   - name:
     - NoImplicitPrelude
+    - ApplicativeDo
     - ConstraintKinds
     - DataKinds
     - DefaultSignatures

src/Stack/Options/LsParser.hs

@@ -1,4 +1,5 @@
 {-# LANGUAGE NoImplicitPrelude   #-}
+{-# LANGUAGE ApplicativeDo       #-}
 {-# LANGUAGE OverloadedStrings   #-}
 
 -- | Function to parse command line arguments for Stack's @ls@ command.
@@ -19,7 +20,7 @@ import           Stack.Ls
                    , LsView (..), SnapshotOpts (..), ListGlobalsOpts
                    )
 import           Stack.Options.DotParser ( dotOptsParser )
-import           Stack.Prelude
+import           Stack.Prelude hiding ( sep )
 
 -- | Parse command line arguments for Stack's @ls@ command.
 lsOptsParser :: OA.Parser LsCmdOpts
@@ -48,9 +49,9 @@ lsDepsCmd :: OA.Mod OA.CommandFields LsCmds
 lsDepsCmd = OA.command "dependencies" $
   OA.info lsDepOptsParser $
        OA.progDesc
-         "View the packages and versions used for a project. Use a command if \
-         \the first target specified has the name of a command. Targets other \
-         \than project packages are ignored."
+         "View the packages versions used for a project. Use a command if the \
+         \first target specified has the name of a command. Targets other than \
+         \project packages are ignored."
     <> OA.footer globalFooter
 
 lsStylesCmd :: OA.Mod OA.CommandFields LsCmds
@@ -193,17 +194,21 @@ listDepsJsonParser :: OA.Parser ListDepsFormat
 listDepsJsonParser = pure ListDepsJSON
 
 listDepsFormatOptsParser :: OA.Parser ListDepsFormatOpts
-listDepsFormatOptsParser = ListDepsFormatOpts
-  <$> separatorParser
-  <*> licenseParser
+listDepsFormatOptsParser = do
+  license <- licenseParser
+  sep <- separatorParser
+  pure ListDepsFormatOpts
+    { sep
+    , license
+    }
 
 separatorParser :: OA.Parser Text
 separatorParser = fmap
   escapeSep
   ( textOption
       (  OA.long "separator"
       <> OA.metavar "SEP"
-      <> OA.help "Separator between package name and package version."
+      <> OA.help "Separator between package name and what follows."
       <> OA.value " "
       <> OA.showDefault
       )