[Bug objc/108743] -fconstant-cfstrings not supported

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108743

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
The option is -mconstant-cfstrings, the documentation is slightly wrong.