Remove duplicate help messages & format CRLF to LF

[July541]

This pr includes:

1. close Duplicate entry in lsp --help #2703, it is because getArguments binds helper for all parser:

   haskell-language-server/src/Ide/Arguments.hs

   Lines 66 to 74 in 07623e0

   	opts = info ((
   	VersionMode <$> printVersionParser exeName
   	<|> probeToolsParser exeName
   	<|> listPluginsParser
   	<|> BiosMode <$> biosParser
   	<|> Ghcide <$> arguments plugins
   	<|> flag' PrintLibDir (long "print-libdir" <> help ("Print project GHCs libdir"))
   	)
   	<**> helper)

2. Restore LF format

[pepeiborra]

Thanks!