Fix a bug in finding the oldest child for timeout purposes, we were

actually finding the youngest.

Luckily, it was not causing timeouts that were too short, only
timeouts that were too long.

tbsetup/vnode_setup.in

@@ -348,11 +348,11 @@ while (1) {
 	# old (not much of a life, is it?), so we find the first one marked for
 	# death.
 	#
-	my $oldest = 0;
+	my $oldest;
 	my $oldestpid = 0;
 	while (my ($pid, $aref) = each %child_vnodes) {
 	    my ($vnode, $pnode, $mode, $jailed, $plab, $birthtime) = @$aref;
-	    if ($birthtime > $oldest) {
+	    if ((!$oldestpid) || ($birthtime < $oldest)) {
 		$oldest = $birthtime;
 		$oldestpid = $pid;
 	    }