MFC r317566: Don't pass size_t arguments to setsockopt(SO_SNDBUF/SO_RCVBUF). These commands take an int. The tests work by accident on little-endian, 64-bit systems. PR: 218919 Tested with: qemu-cheri and CheriBSD built for mips64 Reviewed by: asomers, ngie Obtained from: CheriBSD Sponsored by: DARPA, AFRL