[plt-scheme] if without third argument

> Maybe others on the list will have more positive suggestions...?

An aside here. Is there a tool out there for doing automatic program  
translations using something like syntax-case pattern matching? For  
example, the problem with "if" can be solved by replacing every  
occurrence of:

   (if a b)

with:

   (if a b (void))

Is there a simple way for me to rig something to do this on the  
command line? I'm not volunteering to port LAML, but this is something  
I think about occasionally, especially recently porting the Untyped  
libraries and applications to PLT 4.

-- Dave