# File lib/rspec/core/drb_options.rb, line 55
    def add_filter(argv, name, hash)
      hash.each_pair do |k, v|
        next if [:if,:unless].include?(k)
        tag = name == :inclusion ? k.to_s : "~#{k}"
        tag << ":#{v}" if v.is_a?(String)
        argv << "--tag" << tag
      end unless hash.empty?
    end