> Perhaps inserting an assumed space separator would be more intuitive?
> If we were to go that way it may be possible to allow variable
> specifications such as
>
> #+PROPERTY: var foo=1 bar=2
>
> in which case properties could be easily specified on multiple lines
> using a default space separator.
>
> If this seems like a good way to go I can try to update my previous
> patch.
>

I've updated the patch, the newest version is attached.  It results in
the following behavior.