[htmltmpl] list_unfilled_vars

[Wayne W. <ww...@by...>]

I need something roughly opposite die_on_bad_params.  I need to know
what vars (or loops) in the template are NOT populated at output time.

I've taken over a project where I need to know if I am completely
populating the templates.

Any ideas?  I could do a bunch of query looping and call param('name')
on all the vars that query gives me, but it seems like I wouldn't be the
first to want this.  Is there something already written?

Thanks!
  Wayne Walker
  ww...@by...