From 3ae01237beef536fd201f05bfad99986aae1d324 Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Thu, 18 Jul 2013 18:06:53 -0500
Subject: [PATCH] fix tput string concatenation.

---
 lib/tput.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/tput.js b/lib/tput.js
index 909769d..4f3b41f 100644
--- a/lib/tput.js
+++ b/lib/tput.js
@@ -617,7 +617,7 @@ Tput.prototype._compile = function(val, key) {
   }
 
   function echo(c) {
-    expr('out += (' + c + ')');
+    expr('out += (' + c + ' || "")');
   }
 
   function print(c) {
@@ -1002,7 +1002,7 @@ Tput.prototype._compile = function(val, key) {
 
   // TODO: Make this less ridiculous.
   // Optimize
-  //  ... out += ("foo");return out.join("");
+  //  ... out += ("foo");return out;
   // To:
   //  return "foo";
   v = code.split(/out = "";out \+= \(|\);return out/);