Update to 1.12.3.

*** 1,6 ****
! /*      $Id: chars.in,v 1.42 2011/10/02 10:02:26 kristaps Exp $ */
  /*
   * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
   *
   * Permission to use, copy, modify, and distribute this software for any
   * purpose with or without fee is hereby granted, provided that the above
--- 1,6 ----
! /*      $Id: chars.in,v 1.43 2013/06/20 22:39:30 schwarze Exp $ */
  /*
   * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
   *
   * Permission to use, copy, modify, and distribute this software for any
   * purpose with or without fee is hereby granted, provided that the above
*** 40,49 ****
--- 40,50 ----
  CHAR("%",                       "",             0)
  CHAR("&",                       "",             0)
  CHAR("^",                       "",             0)
  CHAR("|",                       "",             0)
  CHAR("}",                       "",             0)
+ CHAR("t",                       "",             0)
  
  /* Accents. */
  CHAR("a\"",                     "\"",           779)
  CHAR("a-",                      "-",            175)
  CHAR("a.",                      ".",            729)