Initializing buffer prevents a segfault when arguments are incomplete.

(closes issue #13471)
 Reported by: alecdavis
 Patches: 
       20080916__bug13471.diff.txt uploaded by Corydon76 (license 14)
 Tested by: alecdavis


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@145428 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_sms.c

@@ -1744,7 +1744,7 @@ static int sms_exec(struct ast_channel *chan, void *data)
 	sms_t h = { 0 };
 	/* argument parsing support */
 	struct ast_flags flags;
-	char *parse, *sms_opts[OPTION_ARG_ARRAY_SIZE];
+	char *parse, *sms_opts[OPTION_ARG_ARRAY_SIZE] = { 0, };
 	char *p;
 	AST_DECLARE_APP_ARGS(sms_args,
 		AST_APP_ARG(queue);