[Bug c/65040] [5 Regression] gcc-5 -Wformat broken

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65040

--- Comment #13 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Note that this patch had a followup: PR65066.