[COMMITTED, feedback welcome] contrib.texi: Update from 2.40..2.41 commit log

[Florian Weimer]

* Andreas K. Hüttel:

> +@item
> +Code for trigonometric, exponential and related functions in the
> +@file{sysdeps/ieee754/flt-32} subdirectory is shared with the
> +@code{CORE-MATH} project, see again the file @file{LICENSES}.

Would it make sense to call out the main CORE-MATH developers by name?

Thanks,
Florian