Function cleanup

src/csplit.c:205–215

   Called when an error detected. */

static void
cleanup (void)
{
  sigset_t oldset;

  close_output_file ();

  sigprocmask (SIG_BLOCK, &caught_signals, &oldset);
  delete_all_files (false);
  sigprocmask (SIG_SETMASK, &oldset, NULL);
}

static _Noreturn void
cleanup_fatal (void)