Make printf safe

[Walter Bright]

On 7/13/2024 11:39 PM, Richard (Rikki) Andrew Cattermole wrote:
> It'll fool you into thinking it works with the latest compiler when 
> bootstrapping, and silently cause broken programs in older ones.

It won't be silent, as printf argument checking has been around for many years 
in dmd.


> Steven is right, interpolated string wrapper around printf would be a better 
> option.

That's more work.