msvcrt: Fix the name of the Portuguese locale alias.

[Piotr Caban]

On 06/13/12 23:51, Bruno Jesus wrote:
> Just a side note. Although I'm not sure I think portuguese is "ptg",
> brazilian portuguese is "ptb". So the correct may be:
>
>> +    "portuguese", "ptg",
>
> A Portugal user would be able to check that, or maybe it's easier to
> write a testcase.
There already is a test confirming current behavior. It passes on Win7, 
fails on NT4.