server: Fix compilation on systems with a two-argument sched_setaffinity prototype.

[Michael Stefaniuc]

Hello Andrew!

Andrew Nguyen wrote:
> This lets Wine compile successfully on CentOS 3.
CentOS 3? Alexandre was bitching about RHEL 5 being "prediluvian" ...
RHEL 3 has a 2.4.21 based kernel, is over 7 years old and EOL. I'm not
sure it is worth spending the effort to make current Wine compile and
run on such an old system.

bye
	michael