rem: quit (1);
add: quit (EXIT_FAILURE);
context: write_output (void){  size_t nwritten = full_write (STDOUT_FILENO, obuf, output_blocksize);  if (nwritten != output_blocksize)    {      error (0, errno, _("writing to %s"), quote (output_file));      if (nwritten != 0)	w_partial++;      quit (1);    }  else    w_full++;  oc = 0;}