message: only use display date
diff: p.post-meta
  if post.fields.displayDate
  = formatDate( post.fields.displayDate )
  - if post.fields.author.fields
  + if post.fields.displayDate && post.fields.author.fields
  br
  + if post.fields.author.fields
  = post.fields.author.fields.name
  \ No newline at end of file
  