po: Update English (US) translation

[Ken Sharp]

On 18/10/11 15:23, Alexandre Julliard wrote:
> Ken Sharp<kennybobs at o2.co.uk>  writes:
>
>>  From 68519bf26da3d912bf92febc13a34ec00cfd7cc4 Mon Sep 17 00:00:00 2001
>> From: Ken Sharp<kennybobs at o2.co.uk>
>> Date: Sat, 15 Oct 2011 03:50:43 +0100
>> Subject: [PATCH] po: Update English (US) translation
>
> There's no translation to update, the rc files are already en_US. If the
> strings need changing they have to be changed in the rc files.
>

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?