Tidy up CLI layer code

main.go

@@ -125,10 +125,9 @@ var commands = []Command{
 			var stringBuilder = strings.Builder{}
 
 			for game, dataPath := range gameDataPaths {
-				stringBuilder.WriteString(game)
+				if _, printError := fmt.Printf("%s %s\n", game, dataPath); printError != nil {
-				stringBuilder.WriteString(" \"")
+					return "", printError
-				stringBuilder.WriteString(dataPath)
+				}
-				stringBuilder.WriteByte('"')
 			}
 
 			return stringBuilder.String(), nil