let -> var for node 4 support

Author: whyboris

test/cli-tests.js

@@ -9,23 +9,23 @@ var Utils = require('../src/utils.js').Utils;
 describe('Cli', function() {
   describe('getInput', function() {
     it('should readFile when inputType is `file`', function() {
-      let spy = sinon.stub(Utils, 'readFile');
+      var spy = sinon.stub(Utils, 'readFile');
       Cli.getInput('file', ['lol', 'foo'], 'ignore', 'callback');
       assert(spy.calledOnce);
       assert(spy.calledWith('lol', 'callback'));
       spy.restore();
     });
 
     it('should readStdin when inputType is `stdin`', function() {
-      let spy = sinon.stub(Utils, 'readStdin');
+      var spy = sinon.stub(Utils, 'readStdin');
       Cli.getInput('stdin', ['lol'], 'ignore', 'callback');
       assert(spy.calledOnce);
       assert(spy.calledWith('callback'));
       spy.restore();
     });
 
     it('should _runGitDiff by default', function() {
-      let spy = sinon.stub(Cli, '_runGitDiff');
+      var spy = sinon.stub(Cli, '_runGitDiff');
       Cli.getInput('abc', ['lol', 'foo'], 'ignore', 'callback');
       assert(spy.calledOnce);
       assert(spy.calledWith(['lol', 'foo'], 'ignore', 'callback'));
@@ -34,7 +34,7 @@ describe('Cli', function() {
 
   describe('preview', function() {
     it('should call `utils.writeFile`', function() {
-      let spy = sinon.stub(Utils, 'writeFile');
+      var spy = sinon.stub(Utils, 'writeFile');
       Cli.preview('a', 'b');
       assert(spy.calledOnce);
       spy.restore();
@@ -43,7 +43,7 @@ describe('Cli', function() {
 
   describe('postToDiffy', function() {
     it('should call `http.post`', function() {
-      let spy = sinon.stub(http, 'post');
+      var spy = sinon.stub(http, 'post');
       Cli.postToDiffy('a', 'b', 'callback');
       assert(spy.calledOnce);
       assert(spy.calledWith('http://diffy.org/api/new', { udiff: 'a' }));