[Bug c++/64079] %+D in diagnostics breaks pragma GCC diagnostic

[paolo.carlini at oracle dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64079

--- Comment #9 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Agreed. For now I mean to do a first pass on the warnings, no errors, seems
more urgent given the issue involving the pragmas.