[Bug libstdc++/123167] to_chars(long double) produces rubbish with -mlong-double-64

[cassio.neri at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123167

--- Comment #7 from Cassio Neri <cassio.neri at gmail dot com> ---
Great! That makes my life simpler and I won't bother to add such support.

Thank you.