[Bug c/117178] -Wunterminated-string-initialization should ignore trailing NUL byte for nonstring char arrays

[kees at outflux dot net via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117178

--- Comment #22 from Kees Cook <kees at outflux dot net> ---
On a related note, I need to be able to apply nonstring to arrays of char
arrays. See bug #118095.