A couple of fixes and updates

[Dirk Hohndel]

On Sun, Aug 17, 2014 at 12:00:57PM -0700, Thiago Macieira wrote:
> These three patches add to the "Fix and simplify get_file_name" I sent
> earlier.

Someone from a Comcast internet address in Portland running a Brazilian
version of OpenSUSE connected to my server with a broken UserAgent string:

Subsurface:4.2-33-gb354a9ccdec8:x86_64/x86_64:pt-BR:openSUSE 13.1 (Bottle) (x86_64)

The string is supposed to look like this:

Subsurface:4.2.0.0:Windows 7:x86_64:fr

Subsurface:<version>:<OS>:<arch>:<UILang>

Arch ONLY has two parts if it's a 32bit binary. We KNOW that a 64bit
binary won't be running on a 32bit OS...

That format is supposed to stay as invariant as possile as that's how my
tools parse it...

You wouldn't happen to know who that was, would you?

:-/

/D