Unused variable in Flavors example?

[barnabywalters]

I’m new to rust and could be missing something simple here, but from what I can see, in the flavors example, the

let mut buf = [0u8; 32];

line is unnecessary, as the buf variable doesn’t seem to be used anywhere in the rest of the code.

[jamesmunns]

Good catch, thanks @barnabywalters!