[Bug fortran/78822] [cleanup] replace static char buffers by std:string

[janus at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78822

--- Comment #13 from janus at gcc dot gnu.org ---
(In reply to Jakub Jelinek from comment #11)
> BTW, yet another option (and I'd say much more readable) is just using
> build_message_string function

Yes, I think that's a good suggestion. Thanks for all your comments.