[Bug libstdc++/68737] FAIL: 22_locale/num_put/put/char/14220.cc execution test

[dave.anglin at bell dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68737

--- Comment #17 from dave.anglin at bell dot net ---
On 2018-09-04 11:20 AM, redi at gcc dot gnu.org wrote:
> I don't think __cs_size + 1 will be enough in general. There's no reason to
> think it's only 1 byte too small.
>
> Maybe we need a kluge like:
Maybe.  I read in manpage that old glibc versions also return -1 when 
the output is truncated.

I was about to try the attached change.  Was hoping that a slightly 
larger __cs_size would work.