Add space after comma when exporting a name

Author: sergv

ghcide/src/Development/IDE/Plugin/CodeAction.hs

@@ -540,7 +540,7 @@ suggestExportUnusedTopBinding srcOpt ParsedModule{pm_parsed_source = L _ HsModul
                             $ hsmodDecls
   , Just pos <- fmap _end . getLocatedRange =<< hsmodExports
   , Just needComma <- needsComma source <$> hsmodExports
-  , let exportName = (if needComma then "," else "") <> printExport exportType name
+  , let exportName = (if needComma then ", " else "") <> printExport exportType name
         insertPos = pos {_character = pred $ _character pos}
   = [("Export ‘" <> name <> "’", TextEdit (Range insertPos insertPos) exportName)]
   | otherwise = []