much more elegant than the checked in file. and less chance to get it
wrong, as people often enough do.

Change-Id: I975a62dfd83ce4f15947ce54f3c40931b1badae0
Reviewed-by: Tasuku Suzuki <stasuku@gmail.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>