From 392c6022c9d43c6751e3d9d0cae6411f9537507f Mon Sep 17 00:00:00 2001
From: Jan Klosinski <jan.klosinski@rbs.com>
Date: Tue, 1 Mar 2016 17:08:35 +0000
Subject: [PATCH] Copy `process.env` before lower-casing the keys

`process.env` is read-only in GitBash (and potentially other consoles),
so the `lowerCase` flag had no effect.
---
 lib/nconf/stores/env.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/nconf/stores/env.js b/lib/nconf/stores/env.js
index 362d008..47ac3bc 100644
--- a/lib/nconf/stores/env.js
+++ b/lib/nconf/stores/env.js
@@ -60,8 +60,9 @@ Env.prototype.loadEnv = function () {
   var env = process.env;
 
   if (this.lowerCase) {
-    Object.keys(env).forEach(function (key) {
-      env[key.toLowerCase()] = env[key];
+    env = {};
+    Object.keys(process.env).forEach(function (key) {
+      env[key.toLowerCase()] = process.env[key];
     });
   }