explicit nil branch of if should be a bool, not void
explicit nil branch of if should be a bool, not void

fixed https://github.com/cbaggers/varjo/issues/160

`if` is not respecting the difference between `(if foo t)` and `(if foo t nil)`. What is happening is that, because the else form in null it things one hasnt been specified and that it's a 1 armed if.

cbaggers/varjo