fix constants for inotify_init1

- the octal numbers haven't beed converted to hex

- those flags (like O_NONBLOCK) are architecture dependent
> What does a filesystem bit mask have to do with the CPU type? These versions look all wrong to me. Shouldn't the operating system be versioned, not the CPU?

We had this discussion already :), see [here](https://github.com/D-Programming-Language/druntime/pull/411#issuecomment-13472259).