message: cli: add duration in repo lint output
diff: @@ -71,6 +71,7 @@ export async function command(cmd: Command): Promise<void> {
  // since some lint rules don't respect the cwd of ESLint
  process.cwd = () => fullDir;
  + const start = Date.now();
  const eslint = new ESLint({
  cwd: fullDir,
  fix,
  @@ -81,7 +82,8 @@ export async function command(cmd: Command): Promise<void> {
  const results = await eslint.lintFiles(['.']);
  const count = String(results.length).padStart(3);
  - console.log(`Checked ${count} files in ${relativeDir}`);
  + const time = ((Date.now() - start) / 1000).toFixed(2);
  + console.log(`Checked ${count} files in ${relativeDir} ${time}s`);
  if (fix) {
  await ESLint.outputFixes(results);
  