[Patch, fortran] PR24518 and PR24520 - Improvements to MOD an d DOT_PRODUCT

[THOMAS Paul Richard 169137]

FX,

> Oops, I'm so sorry, I had read DOT_PRODUCT instead of MOD.
> 

There is no need to apologise; after all, I should only be submitting one
patch at a time, should I not?

Does anybody know anything about the builtin fmodf?  All I can find are
references to it in ChangeLogs and .def files but nowhere do I find it being
used.

Paul T