Fix code linting errors

src/index.js

@@ -18,8 +18,7 @@ const protectedproperties = (() => Object
 )();
 
 // Sets up global browser environment
-module.exports = function browserEnv() {
-
+const browserEnv = function () {
   // Extract options from args
 	const args = Array.from(arguments);
 	const properties = args.filter(arg => Array.isArray(arg))[0];
@@ -38,8 +37,12 @@ module.exports = function browserEnv() {
     .filter(prop => !(properties && properties.indexOf(prop) === -1))
 
     // Copy what's left to the Node.js global scope
-    .forEach(prop => global[prop] = window[prop]);
+    .forEach(prop => {
+	global[prop] = window[prop];
+});
 
   // Return reference to original window object
 	return window;
 };
+
+module.exports = browserEnv;

test/Arguments should be able to be passed in in either order.js

@@ -3,8 +3,8 @@ import browserEnv from '../src';
 
 test(t => {
 	t.is(typeof navigator, 'undefined');
-  const returnValue = browserEnv(['navigator'], { userAgent: 'first' });
+	browserEnv(['navigator'], { userAgent: 'first' });
 	t.is(navigator.userAgent, 'first');
-  const secondReturnValue = browserEnv({ userAgent: 'second' }, ['navigator']);
+	browserEnv({ userAgent: 'second' }, ['navigator']);
 	t.is(navigator.userAgent, 'second');
 });

test/jsdom arg should set jsdom config.js

@@ -4,6 +4,6 @@ import browserEnv from '../src';
 test(t => {
 	const userAgent = 'Custom user agent';
 	t.is(typeof navigator, 'undefined');
-  browserEnv(['navigator'], { userAgent: userAgent });
+	browserEnv(['navigator'], { userAgent });
 	t.is(navigator.userAgent, userAgent);
 });

test/window properties should be as expected.js

@@ -1,6 +1,6 @@
 import test from 'ava';
-import expectedProperties from './fixtures/expectedProperties';
 import browserEnv from '../src';
+import expectedProperties from './fixtures/expectedProperties';
 
 test(t => {
 	browserEnv();