9718 update mandoc to 1.14.4

*** 1,9 ****
  /*      $OpenBSD$ */
  /*
   * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
!  * Copyright (c) 2010, 2012-2017 Ingo Schwarze <schwarze@openbsd.org>
   *
   * Permission to use, copy, modify, and distribute this software for any
   * purpose with or without fee is hereby granted, provided that the above
   * copyright notice and this permission notice appear in all copies.
   *
--- 1,9 ----
  /*      $OpenBSD$ */
  /*
   * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
!  * Copyright (c) 2010, 2012-2018 Ingo Schwarze <schwarze@openbsd.org>
   *
   * Permission to use, copy, modify, and distribute this software for any
   * purpose with or without fee is hereby granted, provided that the above
   * copyright notice and this permission notice appear in all copies.
   *
*** 118,127 ****
--- 118,128 ----
                  check_text(man, n);
                  break;
          case ROFFT_ROOT:
                  check_root(man, n);
                  break;
+         case ROFFT_COMMENT:
          case ROFFT_EQN:
          case ROFFT_TBL:
                  break;
          default:
                  if (n->tok < ROFF_MAX) {
*** 147,160 ****
  }
  
  static void
  check_root(CHKARGS)
  {
- 
          assert((man->flags & (MAN_BLINE | MAN_ELINE)) == 0);
  
!         if (NULL == man->first->child)
                  mandoc_msg(MANDOCERR_DOC_EMPTY, man->parse,
                      n->line, n->pos, NULL);
          else
                  man->meta.hasbody = 1;
  
--- 148,160 ----
  }
  
  static void
  check_root(CHKARGS)
  {
          assert((man->flags & (MAN_BLINE | MAN_ELINE)) == 0);
  
!         if (n->last == NULL || n->last->type == ROFFT_COMMENT)
                  mandoc_msg(MANDOCERR_DOC_EMPTY, man->parse,
                      n->line, n->pos, NULL);
          else
                  man->meta.hasbody = 1;