One against binary searches

[bearophile]

Xinok:

> I've added it to my todo list. I still haven't taken the time 
> to familiarize myself with Phobos' conventions, so I don't feel 
> comfortable contributing anything yet.

Thank you. The code we are talking about (like a quaternary 
search) is a small amount of code. And I think other people in 
GitHub are willing to show you where you are not following the 
conventions.

Bye,
bearophile