options/posix: Ignore timezone in gettimeofday()
This change matches musl/glibc.
#include <mlibc/sysdeps.hpp>
int gettimeofday(struct timeval *__restrict result, void *__restrict unused) {
- __ensure(!unused);
+ (void)unused; // Linux just ignores gettimeofday().
if(result) {
long nanos;
