RE: Separating obarray handling from abbrevs

[Drew Adams]

> > I was thinking about "map" suffix, but decided not to used it, because
> > "map" functions return something meaningful and this one only nil. :-|
> 
> mapc doesn't return anything.

It returns the input sequence - it is even documented as doing so.

Maybe you meant that it doesn't return anything else that might
be particularly interesting.

(`map-keymap' is a "map" function whose return value is not
documented.)