urlsign.rb in distack-urlsign-0.2.0

- old
+ new

@@ -1,8 +1,9 @@
 # stdlib
 require "uri"
 require "openssl"
 require "base64"
+require "rack"
 
 module Distack
   module URLSign
     def self.strip_heredoc(string)
       min    = string.scan(/^[ \t]*(?=\S)/).min