[Bug preprocessor/49973] Column numbers count multibyte characters as multiple columns

[dmalcolm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=49973

--- Comment #21 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
(In reply to David Malcolm from comment #20)
> I've committed r279137 on Lewis's behalf, which fixes the issues identified
> in patch #13.
comment #13, I meant to say