Added -r0 to genext2fs default for non-root user. Now if a genext2fs would

work for a non-root user, even though it appears exactly the same as the
root_fs created by root with the same template .. it just doesn't work.

gbootroot

@@ -267,7 +267,7 @@ my $home_rootfs = "$home/root_filesystem/";
 my $home_uml_kernel = "$home/uml_kernel/";
 my $modules_directory = "/lib/modules";
 if ( $> != 0 && -e "/usr/lib/bootroot/genext2fs" ) {
-    $main::makefs = "genext2fs -i8192";
+    $main::makefs = "genext2fs -r0 -i8192";
 }