pypy 4.0.1 is quite b0rken on FreeBSD

[Maxim Sobolev]

Hi guys, I've been playing with pypy recently and discovered that it's
quite broken on FreeBSD at the moment. There is some unicode-related issue
which among other thing causes pretty much any file-related function from
the os module to take a crap when supplied file name is an unicode string
as opposed to the regular str() instance, even if the string itself does
not have any non-ascii characters. More details, including 2-line test case
are here:

https://bitbucket.org/pypy/pypy/issues/2233/pypy-401-on-freebsd-12-fails-to-get-the

There are more reports like this, you can find it by googling "TypeError:
expected string, got NoneType object"+pypy+FreeBSD

It would be nice if somebody with some pypy clue can investigate and fix it
before release 10.3 gets shipped out.

Thanks!

-Max