[Bug c/79011] incorrect form of warning options listed in the manual

[egallager at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79011

--- Comment #1 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to Martin Sebor from comment #0)
> Section 3.8 of the manual, Options to Request or Suppress Warnings, states
> that:
> 
>   "This manual lists only one of the two forms, whichever is not the
> default."
> 
> The following is a list of options listed in that section that, according to
> the manual, are enabled by default (and thus should be listed in the
> -Wno-xxx form).
>

...

> -Wno-endif-labels

This one's already in -Wno-xxx form