[Bug c++/117219] strict aliasing documentation maybe should mention C++20's std::bit_cast

[sjames at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117219

--- Comment #5 from Sam James <sjames at gcc dot gnu.org> ---
... and common initial sequence
(https://inbox.sourceware.org/gcc-patches/87cy6aijuy.fsf@gentoo.org/).