From cb80c2bafcf1823dbeaa454742b94621191b331f Mon Sep 17 00:00:00 2001
From: Nick Gammon <nick@gammon.com.au>
Date: Fri, 26 Aug 2011 10:09:30 +1000
Subject: [PATCH] Fixed bug in shuffle algorithm

---
 lua/commas.lua | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lua/commas.lua b/lua/commas.lua
index b9dbeddd..a37b8978 100644
--- a/lua/commas.lua
+++ b/lua/commas.lua
@@ -152,7 +152,7 @@ shuffle (cards)
 function shuffle(t)
   local n = #t
  
-  while n > 2 do
+  while n >= 2 do
     -- n is now the last pertinent index
     local k = math.random(n) -- 1 <= k <= n
     -- Quick swap