isakmpd: add missing void to a function definition

Fixes -Wstrict-prototype warning seen with clang 15 on amd64 and arm64.

diff --git a/sbin/isakmpd/monitor.c b/sbin/isakmpd/monitor.c
index 3714cc3..87b50ab 100644 (file)
--- a/sbin/isakmpd/monitor.c
+++ b/sbin/isakmpd/monitor.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: monitor.c,v 1.82 2021/10/24 21:24:21 deraadt Exp $         */
+/* $OpenBSD: monitor.c,v 1.83 2023/02/08 08:03:11 tb Exp $      */
 
 /*
  * Copyright (c) 2003 Håkan Olsson.  All rights reserved.
@@ -820,7 +820,7 @@ m_priv_check_bind(const struct sockaddr *sa, socklen_t salen)
 }
 
 static void
-m_priv_req_readdir()
+m_priv_req_readdir(void)
 {
        size_t len;
        char path[PATH_MAX];