From 71646f4ade2d7ec228818baeb7d69e72f077d22e Mon Sep 17 00:00:00 2001
From: Sebastian McKenzie <sebmck@gmail.com>
Date: Fri, 7 Nov 2014 13:52:13 +1100
Subject: [PATCH] register: fix ignoreRegex compatibility check

---
 lib/6to5/register.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/6to5/register.js b/lib/6to5/register.js
index 1ccadaec56..6a5b98fefc 100644
--- a/lib/6to5/register.js
+++ b/lib/6to5/register.js
@@ -97,7 +97,7 @@ module.exports = function (opts) {
   // normalise options
   opts = opts || {};
   if (_.isRegExp(opts)) opts = { ignore: opts };
-  opts.ignore = opts.ignore || opts.ignoreRegex;
+  if (opts.ignoreRegex != null) opts.ignore = opts.ignoreRegex;
 
   if (opts.only != null) onlyRegex = opts.only;
   if (opts.ignore != null) ignoreRegex = opts.ignore;