message: Use --> and not ---> as HTML comment ends
diff: @@ -50,7 +50,10 @@ export async function modifyGeneratedFile(
  return;
  }
  - await writeFile(path, file + trailing);
  + // Make sure there's a trailing newline
  + const final = (file + trailing).trim() + "\n";
  +
  + await writeFile(path, final);
  }
  async function readGeneratedFile(
  