[Bug translation/79618] prevent missing space in multiline string literals

[egallager at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79618

--- Comment #10 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to Martin Sebor from comment #9)
> It doesn't.  -Wformat-diag runs after adjacent string literals have been
> concatenated.  Detecting these kinds of issues would mean enhancing the
> preprocessor.

...so it sounds like we still need Roland's linter, then.