upstream: Relax absolute path requirement back to what it was prior to

OpenSSH 9.8, which incorrectly required that sshd was started with an
absolute path in inetd mode. bz3717, patch from Colin Wilson

OpenBSD-Commit-ID: 25c57f22764897242d942853f8cccc5e991ea058

sshd.c

@@ -1,4 +1,4 @@
-/* $OpenBSD: sshd.c,v 1.610 2024/08/17 08:09:50 djm Exp $ */
+/* $OpenBSD: sshd.c,v 1.611 2024/09/12 00:36:27 djm Exp $ */
 /*
  * Copyright (c) 2000, 2001, 2002 Markus Friedl.  All rights reserved.
  * Copyright (c) 2002 Niels Provos.  All rights reserved.
@@ -1341,7 +1341,7 @@ main(int ac, char **av)
 			break;
 		}
 	}
-	if (!test_flag && !do_dump_cfg && !path_absolute(av[0]))
+	if (!test_flag && !inetd_flag && !do_dump_cfg && !path_absolute(av[0]))
 		fatal("sshd requires execution with an absolute path");
 
 	closefrom(STDERR_FILENO + 1);