Update to 1.12.3.

*** 1,6 ****
! /*      $Id: tbl.c,v 1.26 2011/07/25 15:37:00 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: tbl.c,v 1.27 2013/05/31 22:08:09 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
*** 70,113 ****
  }
  
  struct tbl_node *
  tbl_alloc(int pos, int line, struct mparse *parse)
  {
!         struct tbl_node *p;
  
!         p = mandoc_calloc(1, sizeof(struct tbl_node));
!         p->line = line;
!         p->pos = pos;
!         p->parse = parse;
!         p->part = TBL_PART_OPTS;
!         p->opts.tab = '\t';
!         p->opts.linesize = 12;
!         p->opts.decimal = '.';
!         return(p);
  }
  
  void
! tbl_free(struct tbl_node *p)
  {
          struct tbl_row  *rp;
          struct tbl_cell *cp;
          struct tbl_span *sp;
          struct tbl_dat  *dp;
          struct tbl_head *hp;
  
!         while (NULL != (rp = p->first_row)) {
!                 p->first_row = rp->next;
                  while (rp->first) {
                          cp = rp->first;
                          rp->first = cp->next;
                          free(cp);
                  }
                  free(rp);
          }
  
!         while (NULL != (sp = p->first_span)) {
!                 p->first_span = sp->next;
                  while (sp->first) {
                          dp = sp->first;
                          sp->first = dp->next;
                          if (dp->string)
                                  free(dp->string);
--- 70,113 ----
  }
  
  struct tbl_node *
  tbl_alloc(int pos, int line, struct mparse *parse)
  {
!         struct tbl_node *tbl;
  
!         tbl = mandoc_calloc(1, sizeof(struct tbl_node));
!         tbl->line = line;
!         tbl->pos = pos;
!         tbl->parse = parse;
!         tbl->part = TBL_PART_OPTS;
!         tbl->opts.tab = '\t';
!         tbl->opts.linesize = 12;
!         tbl->opts.decimal = '.';
!         return(tbl);
  }
  
  void
! tbl_free(struct tbl_node *tbl)
  {
          struct tbl_row  *rp;
          struct tbl_cell *cp;
          struct tbl_span *sp;
          struct tbl_dat  *dp;
          struct tbl_head *hp;
  
!         while (NULL != (rp = tbl->first_row)) {
!                 tbl->first_row = rp->next;
                  while (rp->first) {
                          cp = rp->first;
                          rp->first = cp->next;
                          free(cp);
                  }
                  free(rp);
          }
  
!         while (NULL != (sp = tbl->first_span)) {
!                 tbl->first_span = sp->next;
                  while (sp->first) {
                          dp = sp->first;
                          sp->first = dp->next;
                          if (dp->string)
                                  free(dp->string);
*** 114,129 ****
                          free(dp);
                  }
                  free(sp);
          }
  
!         while (NULL != (hp = p->first_head)) {
!                 p->first_head = hp->next;
                  free(hp);
          }
  
!         free(p);
  }
  
  void
  tbl_restart(int line, int pos, struct tbl_node *tbl)
  {
--- 114,129 ----
                          free(dp);
                  }
                  free(sp);
          }
  
!         while (NULL != (hp = tbl->first_head)) {
!                 tbl->first_head = hp->next;
                  free(hp);
          }
  
!         free(tbl);
  }
  
  void
  tbl_restart(int line, int pos, struct tbl_node *tbl)
  {