From 97907d5d130881c19b6b1a5df51fc99a42a9ff5d Mon Sep 17 00:00:00 2001
From: rxi <rxi@users.noreply.github.com>
Date: Mon, 3 Mar 2014 21:08:19 +0000
Subject: [PATCH] Changed lume.format() to abort early if `vars` is nil

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

diff --git a/lume.lua b/lume.lua
index d90300f..b55a487 100644
--- a/lume.lua
+++ b/lume.lua
@@ -231,7 +231,7 @@ end
 
 
 function lume.format(str, vars)
-  vars = vars or {}
+  if not vars then return str end
   local f = function(x) return tostring(vars[x] or "{" .. x .. "}") end
   return (str:gsub("{(.-)}", f))
 end