po: Update English (US) translation

[Ken Sharp]

On 18/10/11 17:05, Alexandre Julliard wrote:
> Ken Sharp<kennybobs at o2.co.uk>  writes:
>
>> Okay that should be simple enough, but what is po/en_US.po for then?
>> Won't the translations in en_US.po override any US translations in the
>> .rc files?
>
> Yes, but in general they should be identical. We have en_US.po because
> there are cases where strings need to be different, for instance when
> the .rc string contains a context, or non-ASCII chars.
>

So any changes made should be in both the .rc files AND the .po files to 
keep them in sync?