Turtle - Collections Example sanity check

Minor nit, noted that:
http://dvcs.w3.org/hg/rdf/raw-file/default/rdf-turtle/index.html#collections

contains the example:
   @prefix : <http://example.org/foo> .
   # the object of this triple is the RDF collection blank node
   :subject :predicate ( :a :b :c ) .

   # an empty collection value - rdf:nil
   :subject :predicate2 () .

Is the @prefix supposed to be <http://example.org/foo/> (note the 
trailing slash?