upstream: when invoking KnownHostsCommand to determine the order of

host key algorithms to request, ensure that the hostname passed to the
command is decorated with the port number for ports other than 22.

This matches the behaviour of KnownHostsCommand when invoked to look
up the actual host key.

bz3643, ok dtucker@

OpenBSD-Commit-ID: 5cfabc0b7c6c7ab473666df314f377b1f15420b1

sshconnect2.c

@@ -1,4 +1,4 @@
-/* $OpenBSD: sshconnect2.c,v 1.368 2023/10/12 02:15:53 djm Exp $ */
+/* $OpenBSD: sshconnect2.c,v 1.369 2023/12/13 03:28:19 djm Exp $ */
 /*
  * Copyright (c) 2000 Markus Friedl.  All rights reserved.
  * Copyright (c) 2008 Damien Miller.  All rights reserved.
@@ -140,7 +140,7 @@ order_hostkeyalgs(char *host, struct sockaddr *hostaddr, u_short port,
 	}
 	if (options.known_hosts_command != NULL) {
 		load_hostkeys_command(hostkeys, options.known_hosts_command,
-		    "ORDER", cinfo, NULL, host);
+		    "ORDER", cinfo, NULL, hostname);
 	}
 	/*
 	 * If a plain public key exists that matches the type of the best