From 2bdf7e1a3259a645c211808fcc12bf2e81975415 Mon Sep 17 00:00:00 2001
From: Adrien Becchis <adrien.becchis@gmail.com>
Date: Sat, 4 Nov 2017 04:41:23 +0100
Subject: [PATCH] Clean Argv Store options (#290)

* unset parse/transform from options and ensure they are not yargs options

* use delete rather than undefined assignement
---
 lib/nconf/stores/argv.js | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/lib/nconf/stores/argv.js b/lib/nconf/stores/argv.js
index b2e13b6..881339a 100644
--- a/lib/nconf/stores/argv.js
+++ b/lib/nconf/stores/argv.js
@@ -23,8 +23,19 @@ var Argv = exports.Argv = function (options, usage) {
   this.readOnly = true;
   this.options  = options;
   this.usage    = usage;
-  this.parseValues = options.parseValues || false;
-  this.transform = options.transform || false;
+  if(typeof options.parseValues === 'boolean') {
+      this.parseValues = options.parseValues;
+      delete options.parseValues;
+  } else {
+      this.parseValues = false;
+  }
+  if (typeof options.transform === 'function') {
+      this.transform = options.transform;
+      delete options.transform;
+  } else {
+      this.transform = false;
+  }
+
 };
 
 // Inherit from the Memory store