Function posish::fs::renameat

pub fn renameat<P: Arg, Q: Arg, PFd: AsRawFd, QFd: AsRawFd>(
    old_dirfd: &PFd, 
    old_path: P, 
    new_dirfd: &QFd, 
    new_path: Q
) -> Result<()>

renameat(old_dirfd, old_path, new_dirfd, new_path)