Method DUP2

src/subprocess.cpp:109–114

#ifndef __WINDOWS__
Subprocess::ChildHook Subprocess::ChildHook::DUP2(int oldFd, int newFd)
{
  return Subprocess::ChildHook([oldFd, newFd]() -> Try<Nothing> {
    return os::dup2(oldFd, newFd);
  });
}
#endif // __WINDOWS__