docs: function rpcCommonBufferData(args, callback) {
      var req, rpcmethod, log, data;
  
      assert.func(callback, 'callback');
      req = rpcCommon(args, function (err) {
          if (err) {
              callback(err);
          } else {
              callback(null, data);
          }
      });
  
      rpcmethod = args.rpcmethod;
      log = args.log;
      data = [];
      req.on('data', function (obj) {
          log.debug({ 'message': obj }, 'rpc ' + rpcmethod + ': received object');
          data.push(obj);
      });
  
      return (req);
  }