KB-FORMAT
=========

syntax: (kb-format <babylon-format-string>
                   {<babylon-format-arg> ...})

With KB-FORMAT you get an output. KB-FORMAT
always returns NIL.

example: >(ask [capital-city _city]
               (kb-format "~%~A" (name-of _city)))
         Paris
         London
         Amsterdam

         >(kb-format "Visit ~{~A ~}"
           (set-to-list
            (ask-instance-values 'offer Paris)))
         Visit
         (Louvre Notre-Dame Moulin-Rouge)