[7917] parsetexi update

[gavinsmith0123]

Revision: 7917
          http://svn.sv.gnu.org/viewvc/?view=rev&root=texinfo&revision=7917
Author:   gavin
Date:     2017-07-10 13:55:17 -0400 (Mon, 10 Jul 2017)
Log Message:
-----------
parsetexi update

Modified Paths:
--------------
    trunk/tp/parsetexi/parser.c

Modified: trunk/tp/parsetexi/parser.c
===================================================================
--- trunk/tp/parsetexi/parser.c 2017-07-10 17:52:54 UTC (rev 7916)
+++ trunk/tp/parsetexi/parser.c 2017-07-10 17:55:17 UTC (rev 7917)
@@ -703,6 +703,9 @@
     return 0;
 
   cmdname = read_command_name (&linep);
+  if (!cmdname)
+    return 0;
+
   *end_cmd = lookup_command (cmdname);
   free (cmdname);
   if (*end_cmd != current->cmd)