update dependencies

app/node_modules/fs-extra/lib/mkdirs/mkdirs.js

@@ -1,8 +1,10 @@
-var fs = require('graceful-fs')
-var path = require('path')
-var invalidWin32Path = require('./win32').invalidWin32Path
+'use strict'
 
-var o777 = parseInt('0777', 8)
+const fs = require('graceful-fs')
+const path = require('path')
+const invalidWin32Path = require('./win32').invalidWin32Path
+
+const o777 = parseInt('0777', 8)
 
 function mkdirs (p, opts, callback, made) {
   if (typeof opts === 'function') {
@@ -13,13 +15,13 @@ function mkdirs (p, opts, callback, made) {
   }
 
   if (process.platform === 'win32' && invalidWin32Path(p)) {
-    var errInval = new Error(p + ' contains invalid WIN32 path characters.')
+    const errInval = new Error(p + ' contains invalid WIN32 path characters.')
     errInval.code = 'EINVAL'
     return callback(errInval)
   }
 
-  var mode = opts.mode
-  var xfs = opts.fs || fs
+  let mode = opts.mode
+  const xfs = opts.fs || fs
 
   if (mode === undefined) {
     mode = o777 & (~process.umask())
@@ -29,7 +31,7 @@ function mkdirs (p, opts, callback, made) {
   callback = callback || function () {}
   p = path.resolve(p)
 
-  xfs.mkdir(p, mode, function (er) {
+  xfs.mkdir(p, mode, er => {
     if (!er) {
       made = made || p
       return callback(null, made)
@@ -37,7 +39,7 @@ function mkdirs (p, opts, callback, made) {
     switch (er.code) {
       case 'ENOENT':
         if (path.dirname(p) === p) return callback(er)
-        mkdirs(path.dirname(p), opts, function (er, made) {
+        mkdirs(path.dirname(p), opts, (er, made) => {
           if (er) callback(er, made)
           else mkdirs(p, opts, callback, made)
         })
@@ -47,7 +49,7 @@ function mkdirs (p, opts, callback, made) {
       // there already.  If so, then hooray!  If not, then something
       // is borked.
       default:
-        xfs.stat(p, function (er2, stat) {
+        xfs.stat(p, (er2, stat) => {
           // if the stat fails, then that's super weird.
           // let the original error be the failure reason.
           if (er2 || !stat.isDirectory()) callback(er, made)