MFC 200061:

MFC 200061:
The fd_mask type is an unsigned long, not an int, so treat the mask as a
long instead of an int when examining the results of select() to look for
RPC requests.  Previously this routine would ignore RPC requests to sockets
whose file descriptor mod 64 was greater than 31 on a 64-bit platform.

git-svn-id: svn://svn.freebsd.org/base/stable/8@200224 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f