> This will need suitable additions to NEWS

New patch attached with addition to NEWS (and a version tag for the
defcustom, which I forgot last time). I haven't marked the news item
with +++ or ---, wasn't sure whether I've done everything I need to yet.

> and the manual

I've added documentation to the 'Mode Line Variables' section of the
Elisp manual. This seemed to be where similar things were documented.
Updated my commit message to reflect this.

>> I'v already assinged copyright -- I've contributed to Emacs before.
> Yes, I see it now, sorry. (I didn't find it before because your name
> appears in the list of assignment with a typo. Should be fixed soon.)

Do I need to update my AUTHORs entry with this new change?

Hope that's all good.

Hugo