Fix pre 8.6 build

Author: Avi-D-coder

src/Haskell/Ide/Engine/Plugin/Ormolu.hs

@@ -108,5 +108,5 @@ provider contents uri typ _ = pluginGetFile contents uri $ \fp -> do
  exop s =
  "-X" `isPrefixOf` s || "-fplugin=" `isPrefixOf` s || "-pgmF=" `isPrefixOf` s
 #else
- provider _ _ _ _ = return $ IdeResultOk [] -- NOP formatter
+provider _ _ _ _ = return $ IdeResultOk [] -- NOP formatter
 #endif