Refactor symlinkType/Sync

lib/ensure/symlink-type.js

@@ -1,10 +1,12 @@
-var fs = require('graceful-fs')
+'use strict'
+
+const fs = require('graceful-fs')
 
 function symlinkType (srcpath, type, callback) {
   callback = (typeof type === 'function') ? type : callback
   type = (typeof type === 'function') ? false : type
   if (type) return callback(null, type)
-  fs.lstat(srcpath, function (err, stats) {
+  fs.lstat(srcpath, (err, stats) => {
     if (err) return callback(null, 'file')
     type = (stats && stats.isDirectory()) ? 'dir' : 'file'
     callback(null, type)
@@ -12,9 +14,11 @@ function symlinkType (srcpath, type, callback) {
 }
 
 function symlinkTypeSync (srcpath, type) {
+  let stats
+
   if (type) return type
   try {
-    var stats = fs.lstatSync(srcpath)
+    stats = fs.lstatSync(srcpath)
   } catch (e) {
     return 'file'
   }
@@ -22,6 +26,6 @@ function symlinkTypeSync (srcpath, type) {
 }
 
 module.exports = {
-  symlinkType: symlinkType,
-  symlinkTypeSync: symlinkTypeSync
+  symlinkType,
+  symlinkTypeSync
 }