Re: trivial bug of font-lock in Change Log mode.

[Richard Stallman]

    Anyway, I think this kind of discussion is useless unless we
    know what kind of date format we are going to support.  For
    instance, the current one doesn't handle this kind of date
    format (note "JST"):

    Sat May 28 09:41:40 JST 2005

The idea is to handle date formats that were actually used in change
logs, now or in the past.  We don't want to aim to handle all date formats
that people use in other contexts.

I recall that we did previously use a different date format.
I don't remember what it was, but maybe you can find it from
old versions of add-log.el.