code: private String createPaxRunnerScan( Artifact artifact, String optionTokens )
      {
          return "scan-bundle:" + artifact.getFile().toURI().normalize().toString() + "@update" + optionTokens;
      }
docs: Creates scanner directives from artifact to be parsed by pax runner.
  Also includes options found and matched in settings part of configuration.
  
  @param artifact     to be used to create scanner directive.
  @param optionTokens to be used to create scanner directive.
  
  @return pax runner compatible scanner directive.