[PATCH] assume sprintf formatting of wide characters may fail (PR 86853)

[Jeff Law]

On 08/09/2018 01:29 PM, Bernd Edlinger wrote:
>>> +	      bool one_2_one_ascii
>>> +		= (target_to_host_charmap[0] == 1 && target_to_host ('a') == 97);
>> Hmm.  Is this really sufficient?    I have nowhere near enough knowledge
>> of the potential target character sets to know if this is sufficiently
>> tight.
> 
> Shouldn't it be target_to_host (97) == 'a' ?
According to Martin it actually doesn't matter, it can be written either
way and the result is still testing what we need.

jeff