[PATCH v2 1/8] Use STRFMON_LDBL_IS_DBL instead of __ldbl_is_dbl.

[Florian Weimer]

* Gabriel F. T. Gomes:

> Signed-off-by: Zack Weinberg <zackw@panix.com>
> Signed-off-by: Gabriel F. T. Gomes <gabriel@inconstante.eti.br>

We don't use DCO, but copyright assignments, so this is incorrect.

Thanks,
Florian