Updated stunnel to 4.50

Formula/stunnel.rb

@@ -1,9 +1,9 @@
 require 'formula'
 
 class Stunnel < Formula
-  url 'ftp://ftp.stunnel.org/stunnel/archive/4.x/stunnel-4.49.tar.gz'
+  url 'ftp://ftp.stunnel.org/stunnel/archive/4.x/stunnel-4.50.tar.gz'
   homepage 'http://www.stunnel.org/'
-  sha256 'dcb0e1f21e9fcf56f4d67bc7a5a4ef8720845b61063a749953417db2616cb20d'
+  md5 'd68b4565294496a8bdf23c728a679f53'
 
   # This patch installs a bogus .pem in lieu of interactive cert generation.
   def patches
@@ -45,4 +45,4 @@ index 0c00347..f53668f 100644
 +prompt                          = no
 
  [ req_dn ]
- countryName = Country Name (2 letter code)
+ countryName = Country Name (2 letter code)