[clang] [Clang][doc] -ffp-contract options and standard compliance (PR #127621)

[Aaron Ballman via cfe-commits]

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@@ -1681,19 +1681,27 @@ for more details.
    permitted to produce more precise results than performing the same
    operations separately.
 
-   The C standard permits intermediate floating-point results within an
+   The C/C++ standard permits intermediate floating-point results within an
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AaronBallman wrote:

I'd prefer `C and C++ standards`. Same elsewhere in the changes. :-)

https://github.com/llvm/llvm-project/pull/127621