[Bug c/60523] Warning flag for octal literals [-Woctal-literals]

[egallager at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60523

--- Comment #9 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to Eric Gallager from comment #8)
> *** Bug 70952 has been marked as a duplicate of this bug. ***

While this was a mistake, it still might be worth grouping the flag proposed in
that bug, -Woctal-escapes, and the flag proposed in this bug, -Woctal-literals,
under an umbrella flag called just -Woctal