tail and procmail

I tried to do this:

VAR1 = `/path/to/executable`
VAR2 = `tail −1 $VAR1`

It didn't work, obviously.

How can I 'tail' to get the last line of a multi-line VAR in procmail?

-- 
You try to shape the world to what you want the world to be.
        Carving your name a thousand times won't bring you back to me.
        Oh no, no I might as well go and tell it to the trees. Go and
        tell it to the trees, yeah.


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