doing.rb in doing-2.1.37

- old
+ new

@@ -13,9 +13,10 @@
 require 'readline'
 require 'haml'
 require 'json'
 require 'logger'
 require 'safe_yaml/load'
+require 'fcntl'
 
 require 'chronic'
 require 'tty-link'
 require 'tty-which'
 require 'tty-markdown'