bug#32189: 27.0.50; GCC 7 warning due to -Wformat-truncation=2

[Ken Brown]

On 7/20/2018 10:37 AM, Paul Eggert wrote:
> Ken Brown wrote:
> > Amended patch attached.
>
> Thanks for checking it. I installed it in master.

Thanks.  I'm closing the bug.  One last question: It seems that the new 
function 'format_string' could be useful in other places also.  (I may 
have a candidate very soon.)  Would it make sense to move its definition 
to eval.c, where vformat_string is defined, and declare it as external 
in lisp.h?

Ken