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

[joseph at codesourcery dot com]

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

--- Comment #1 from joseph at codesourcery dot com <joseph at codesourcery dot com> ---
The difference between -std=gnu11 and -std=gnu17 is not meant to be 
significant, since apart from the __STDC_VERSION__ change C17 is purely a 
bug-fix version and so there are no other semantic differences between the 
two versions in GCC.