Update to 1.12.3.

*** 1,6 ****
! /*      $Id: chars.c,v 1.52 2011/11/08 00:15:23 kristaps Exp $ */
  /*
   * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
   * Copyright (c) 2011 Ingo Schwarze <schwarze@openbsd.org>
   *
   * Permission to use, copy, modify, and distribute this software for any
--- 1,6 ----
! /*      $Id: chars.c,v 1.54 2013/06/20 22:39:30 schwarze Exp $ */
  /*
   * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
   * Copyright (c) 2011 Ingo Schwarze <schwarze@openbsd.org>
   *
   * Permission to use, copy, modify, and distribute this software for any
*** 35,45 ****
          const char       *code;
          const char       *ascii;
          int               unicode;
  };
  
! #define LINES_MAX         328
  
  #define CHAR(in, ch, code) \
          { NULL, (in), (ch), (code) },
  
  #define CHAR_TBL_START    static struct ln lines[LINES_MAX] = {
--- 35,45 ----
          const char       *code;
          const char       *ascii;
          int               unicode;
  };
  
! #define LINES_MAX         329
  
  #define CHAR(in, ch, code) \
          { NULL, (in), (ch), (code) },
  
  #define CHAR_TBL_START    static struct ln lines[LINES_MAX] = {
*** 75,85 ****
           * is simply the integral value of the first character.
           * Subsequent entries are chained in the order they're processed.
           */
  
          tab = mandoc_malloc(sizeof(struct mchars));
!         htab = mandoc_calloc(PRINT_HI - PRINT_LO + 1, sizeof(struct ln **));
  
          for (i = 0; i < LINES_MAX; i++) {
                  hash = (int)lines[i].code[0] - PRINT_LO;
  
                  if (NULL == (pp = htab[hash])) {
--- 75,85 ----
           * is simply the integral value of the first character.
           * Subsequent entries are chained in the order they're processed.
           */
  
          tab = mandoc_malloc(sizeof(struct mchars));
!         htab = mandoc_calloc(PRINT_HI - PRINT_LO + 1, sizeof(struct ln *));
  
          for (i = 0; i < LINES_MAX; i++) {
                  hash = (int)lines[i].code[0] - PRINT_LO;
  
                  if (NULL == (pp = htab[hash])) {