doRun method
Implementation
@override
Future<int> doRun() async {
final args = argResults!;
final config = findConfigAndSetWorkingDir();
final l10nConfig = config.l10n;
final baseLocale = args.getLocale(_argLocale)?.toArbLocale() ??
l10nConfig.baseLocaleForArb;
return _cleanUp(l10nConfig, baseLocale);
}