9718 update mandoc to 1.14.4

@@ -1,9 +1,9 @@
-/*      $Id: mandoc.c,v 1.103 2017/07/03 13:40:19 schwarze Exp $ */
+/*      $Id: mandoc.c,v 1.104 2018/07/28 18:34:15 schwarze Exp $ */
 /*
  * Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2011-2015, 2017 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2011-2015, 2017, 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.
  *

@@ -539,10 +539,13 @@
             a2time(&t, "%b %d, %Y", in)) {
                 cp = time2a(t);
                 if (t > time(NULL) + 86400)
                         mandoc_msg(MANDOCERR_DATE_FUTURE, man->parse,
                             ln, pos, cp);
+                else if (*in != '$' && strcmp(in, cp) != 0)
+                        mandoc_msg(MANDOCERR_DATE_NORM, man->parse,
+                            ln, pos, cp);
                 return cp;
         }
 
         /* In man(7), do not warn about the legacy format. */