brandelf and linux (realplay)

[Rob]

Hi,

I have realplay installed via the ports.
The executable 'realplayer' is installed in /usr/local/bin/realplay.
When I verify the brandelf status of it, I get:

    $ brandelf /usr/local/bin/realplay
    File '/usr/local/bin/realplay' is of brand 'SVR4' (0).

(This is on both, 4.X-Stable and 5.X-(Almost)Stable).

This raises two questions by me:

1. Why does an obvious linux port not brandelf its
    executables as Linux during its build?

2. If brandelf indicates a different type than it
    actually is (SVR4 instead of Linux), then what
    the hack is this brandelf for?

Thanks,
Rob.