code: function findConfigFile() {
  	let configDir
  	try {
  		configDir = findup.sync(process.cwd(), CONFIG_FILENAME)
  	} catch (exception) {
  		return false
  	}
  
  	return path.join(configDir, CONFIG_FILENAME)
  }
docs: Try to find config file up the file tree.
  
  @return {string|boolean} Config absolute file path.