[minor] Fix whitespaces

lib/nconf.js

@@ -22,7 +22,7 @@ require('pkginfo')(module, 'version');
 fs.readdirSync(__dirname + '/nconf/stores').forEach(function (file) {
   var store = file.replace('.js', ''),
       name  = common.capitalize(store);
-      
+
   nconf.__defineGetter__(name, function () {
     return require('./nconf/stores/' + store)[name];
   });

lib/nconf/common.js

@@ -4,7 +4,7 @@
  * (C) 2011, Nodejitsu Inc.
  *
  */
- 
+
 var fs = require('fs'),
     async = require('async'),
     formats = require('./formats'),
@@ -15,7 +15,7 @@ var common = exports;
 //
 // ### function path (key)
 // #### @key {string} The ':' delimited key to split
-// Returns a fully-qualified path to a nested nconf key. 
+// Returns a fully-qualified path to a nested nconf key.
 //
 common.path = function (key) {
   return key.split(':');
@@ -50,7 +50,7 @@ common.loadFiles = function (files, callback) {
 
   function parseFile (file, next) {
     fs.readFile(file, function (err, data) {
-      return !err 
+      return !err
         ? next(null, options.format.parse(data.toString()))
         : next(err);
     });
@@ -91,13 +91,13 @@ common.loadFilesSync = function (files) {
 //
 common.merge = function (objs) {
   var store = new Memory();
-  
+
   objs.forEach(function (obj) {
     Object.keys(obj).forEach(function (key) {
       store.merge(key, obj[key]);
     });
   });
-  
+
   return store.store;
 };