message: packages/cli: add newline at the end of package.json during diff
diff: @@ -118,7 +118,7 @@ class PackageJsonHandler {
  private async write() {
  await fs.writeFile(
  paths.resolveTarget(this.file.targetPath),
  - JSON.stringify(this.targetPkg, null, 2),
  + `${JSON.stringify(this.targetPkg, null, 2)}\n`,
  );
  }
  }
  