code: function copyNonfiles(config, provider) {
    if (!provider) return config;
    for (var key in provider) {
      if (!isFilesKey(key)) {
        config[key] = provider[key];
      }
    }
    return config;
  }
docs: Create a `files` array from a src-dest object.
  
  ```js
  // converts from:
  { src: '*.js', dest: 'foo/' }
  
  // to:
  { files: [{ src: ['*.js'], dest: 'foo/' }] }
  ```