[Bug c/101446] -Wpedantic causes an error with zero size array

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101446

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
-Wpedantic was added as fix for PR44774 to make -Werror=pedantic work
(as opposed to -Werror=edantic)