lib/rdf/model/statement.rb in rdf-0.2.2 vs lib/rdf/model/statement.rb in rdf-0.2.3

@@ -244,10 +244,9 @@
     ##
     # Returns a string representation of this statement.
     #
     # @return [String]
     def to_s
-      require 'stringio' unless defined?(StringIO)
       StringIO.open do |buffer|
         buffer << case subject
           when RDF::Node    then subject.to_s
           when RDF::URI     then "<#{subject}>"
           else subject.inspect