old_contents: var definition = require('./definition');
  
  function initialDeps(req, res, next, err) {
      var deps = [
          definition.initial('ALL', /.*/, 'req', req),
          definition.initial('ALL', /.*/, 'res', res),
      ];
      if (next) {
          deps.push(definition.initial('ALL', /.*/, 'next', next));
      }
      if (err) {
          deps.push(definition.initial('ALL', /.*/, 'err', err));
      }
      return deps;
  }
  
  module.exports = initialDeps;
  
new_contents: var definition = require('./definition');
  
  function initialDeps(req, res, next, err) {
      var deps = [
          definition.initial('ALL', /.*/, 'req', req),
          definition.initial('ALL', /.*/, 'res', res),
      ];
      deps.push(definition.initial('ALL', /.*/, 'next', next));
      if (err) {
          deps.push(definition.initial('ALL', /.*/, 'err', err));
      }
      return deps;
  }
  
  module.exports = initialDeps;
  
subject: Remove if check for 'next' in initialDeps utility