code: function __normalizePath(remotePath) {
      if (remotePath instanceof Buffer) {
          remotePath = remotePath.toString('utf8');
      }
  
      if (remotePath === '/') {
          return '';
      }
  
      if (remotePath.indexOf('./') === 0) {
          return remotePath.replace(/\.\//, '');
      }
  
      return remotePath;
  }
docs: Normalize an input path string or buffer
  Dropbox doesn’t allow '/' for root, it should be an empty string
  and some users prefer to prefix the path with a dot.
  
  @param {String|Buffer} remotePath
  @returns {String}