Redundant use of dfadd_f2_f2_f ?

[Remotion]

https://github.com/shibatch/sleef/blob/85440a5e87dae36ca1b891de14bc83b441ae7c43/src/libm/sleefsp.c#L1031

This line can be simplified to if (!o && d < 0) r = 3.1415927410125732422f - r;

[shibatch]

I will look into this.