return -1 on host() address parsing failure, not 1.

Match what parse.y expects it to return.
ok millert@

src/usr.sbin/ntpd/client.c

@@ -1,4 +1,4 @@
-/*	$OpenBSD: client.c,v 1.96 2015/01/09 07:35:37 deraadt Exp $ */
+/*	$OpenBSD: client.c,v 1.97 2015/01/09 23:44:07 bcook Exp $ */
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -112,7 +112,7 @@ client_nextaddr(struct ntp_peer *p)
 		return (-1);
 	}
 
-	if ((p->addr = p->addr->next) == NULL)
+	if (p->addr == NULL || (p->addr = p->addr->next) == NULL)
 		p->addr = p->addr_head.a;
 
 	p->shift = 0;

src/usr.sbin/ntpd/config.c

@@ -1,4 +1,4 @@
-/*	$OpenBSD: config.c,v 1.19 2006/05/27 17:01:07 henning Exp $ */
+/*	$OpenBSD: config.c,v 1.20 2015/01/09 23:48:21 bcook Exp $ */
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -58,7 +58,7 @@ host(const char *s, struct ntp_addr **hn)
 
 	*hn = h;
 
-	return (1);
+	return (-1);
 }
 
 struct ntp_addr	*