old_contents: define(['lib/adapters/localstorage'], function(withLocalStorage) {
  
    return function() {
  
      var adapters = {
        'localstorage': withLocalStorage
      };
  
      this.availableAdapters = function() {
        return Object.keys(adapters);
      };
  
      this.adapter = function(name) {
        return adapters[name];
      };
  
    };
  
  });
new_contents: define(['lib/adapters/localstorage'], function(localStorageAdapter) {
  
    return function() {
  
      var adapters = {
        'localstorage': localStorageAdapter
      };
  
      this.availableAdapters = function() {
        return Object.keys(adapters);
      };
  
      this.adapter = function(name) {
        return adapters[name];
      };
  
    };
  
  });
subject: Rename variable in adapters