Vtest compiler/arch issue

[Dridi Boukelmoune]

> People get to write whatever they want in that message, provided
> they use max 10 char from the set [A-Za-z0-9/. _-].

I'm feeling compelled to point out that yesterday you were complaining
about artificial compiler limitations that are no longer relevant in
today's computing. And as such with 10 characters I can't even fit
"Linux-x86_64":

    MESSAGE=$(uname -s)-$(uname -m)

Cheers,
Dridi