[PATCH 1/6] vfprintf: Introduce THOUSANDS_SEP_T

[Paul Eggert]

Florian Weimer wrote:
>   # define INT_T		int
> +typedef const char *THOUSANDS_SEP_T;

A nit: if the name's not a macro, I'd keep it lower-case.  Upper-case is for 
shouting "WATCH OUT! I LOOK LIKE A NORMAL NAME, BUT I ACTUALLY AM A MACRO!"