[v4] C2x strtol binary constant handling

[Joseph Myers]

On Fri, 27 Jan 2023, Adhemerval Zanella Netto via Libc-alpha wrote:

> LGTM, thanks.  I think it is too late fr 2.37, so I think we will need
> to postpone to 2.38.  The abilist marking updated to 2.38 should be
> straightforward, so I don't see the need to a new version.

FR-228 was rejected at today's WG14 meeting (i.e. C2x keeps the new 
strtol/scanf semantics), so I'll update and commit this patch, then update 
and repost the scanf one.

-- 
Joseph S. Myers
joseph@codesourcery.com