rem: pad_vertically = TRUE;
add: pad_vertically = true;
context: read_line (COLUMN *p){  int c;  int chars IF_LINT (= 0);  int last_input_position;  int j, k;  COLUMN *q;  /* read 1st character in each line or any character succeeding a FF: */  c = getc (p->fp);  last_input_position = input_position;  if (c == '\f' && p->full_page_printed)    if ((c = getc (p->fp)) == '\n')      c = getc (p->fp);  p->full_page_printed = FALSE;  switch (c)    {    case '\f':      if ((c = getc (p->fp)) != '\n')	ungetc (c, p->fp);      FF_only = TRUE;      if (print_a_header && !storing_columns)	{	  pad_vertically = TRUE;	  print_header ();	}      else if (keep_FF)	print_a_FF = TRUE;      hold_file (p);      return TRUE;    case EOF:      close_file (p);      return TRUE;    case '\n':      break;    default:      chars = char_to_clump (c);    }  if (truncate_lines && input_position > chars_per_column)    {      input_position = last_input_position;      return FALSE;    }  if (p->char_func != store_char)    {      pad_vertically = TRUE;      if (print_a_header && !storing_columns)	print_header ();      if (parallel_files && align_empty_cols)	{	  /* We have to align empty columns at the beginning of a line. */	  k = separators_not_printed;	  separators_not_printed = 0;	  for (j = 1, q = column_vector; j <= k; ++j, ++q)	    {	      align_column (q);	      separators_not_printed += 1;	    }	  padding_not_printed = p->start_position;	  if (truncate_lines)	    spaces_not_printed = chars_per_column;	  else	    spaces_not_printed = 0;	  align_empty_cols = FALSE;	}      if (padding_not_printed - col_sep_length > 0)	{	  pad_across_to (padding_not_printed - col_sep_length);	  padding_not_printed = ANYWHERE;	}      if (use_col_separator)	print_sep_string ();    }  if (p->numbered)    add_line_number (p);  empty_line = FALSE;  if (c == '\n')    return TRUE;  print_clump (p, chars, clump_buff);  for (;;)    {      c = getc (p->fp);      switch (c)	{	case '\n':	  return TRUE;	case '\f':	  if ((c = getc (p->fp)) != '\n')	    ungetc (c, p->fp);	  if (keep_FF)	    print_a_FF = TRUE;	  hold_file (p);	  return TRUE;	case EOF:	  close_file (p);	  return TRUE;	}      last_input_position = input_position;      chars = char_to_clump (c);      if (truncate_lines && input_position > chars_per_column)	{	  input_position = last_input_position;	  return FALSE;	}      print_clump (p, chars, clump_buff);    }}