fixed test for ntriples parser and removed spurious pp output
fixed test for ntriples parser and removed spurious pp output

mauriciobomfim/ActiveRDF,net7/ActiveRDF,ActiveRDF/ActiveRDF,net7/ActiveRDF,mauriciobomfim/ActiveRDF,mauriciobomfim/ActiveRDF,ActiveRDF/ActiveRDF,net7/ActiveRDF,net7/ActiveRDF,ActiveRDF/ActiveRDF