Re: snprintf(3) example warns under -Wextra

[Timo Buhrmester]

> The main difference between you and Theo is that Theo knows what he's
> talking about.
If you want to contribute anything, point out how casting a non-negative
into to size_t for comparison against another size_t could lead to 
"real errors later whenever the code evolves in any way".  Nice straw-man
with the s/world/code/, too.  Sure makes it easier to appear to have a point.