[Bug preprocessor/92390] Preprocessor reports 'missing terminating " character' warning despite #if 0

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92390

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
>That bug was reported in 2004 and after *15 years* it has not been solved yet. 

Because 19 years of ISO C, it is still not a bug.  There are other duplicates
which explain why.