don't emit emty <p> tags
and clean up resolved old comment
::
++ para :: paragraph
%+ cook
- |=(flow [[%p ~] +<]~)
- ;~(pfix (punt whit) down) ::REVIEW does this mean comments work?
+ |=(a/flow ?~(a ~ [[%p ~] a]~))
+ ;~(pfix (punt whit) down)
::
++ expr :: expression
%+ ifix [(punt whit) (punt whit)]
