-Wformat-diag: floating-point or floating point?

[Joseph Myers]

On Wed, 22 May 2019, Martin Sebor wrote:

>   ISO C does not support decimal floating point

And as a tangential point, that's not accurate for C2X, where DFP is an 
optional standard feature, but it's probably reasonable to keep the 
diagnostic saying "ISO C does not support" under its existing conditions 
until someone actually reviews and updates the DFP support for the 
differences between the old TR 24732:2009 and the newer TS 18661-2 / C2X 
version (not sure how big those differences are, but not much has changed 
in the DFP support in GCC lately).

-- 
Joseph S. Myers
joseph@codesourcery.com