[Bug web/85917] GCC 8 Changes page fails to mention change of default mode for C

[Arfrever.FTA at GMail dot Com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85917

--- Comment #2 from Arfrever Frehtes Taifersar Arahesis <Arfrever.FTA at GMail 
dot Com> ---
Even such minor changes could be mentioned in that page for completeness.