[Bug web/88860] Clarify gcc online manual 6.38 Attribute Syntax

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88860

--- Comment #8 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Has it been reviewed and approved? I can't do that for patches outside the
libstdc++-v3 dir.