lib/util/utimes: try to match appveyor

lib/util/utimes.js

@@ -6,13 +6,13 @@ var HAS_MILLIS_RES = hasMillisRes()
 // HFS, ext{2,3}, FAT do not, Node.js v0.10 does not
 function hasMillisRes () {
   // 550 millis past UNIX epoch
-  var d = new Date(550)
+  var d = new Date(1435410243862)
   var tmpfile = path.join(require('os').tmpdir(), 'millis-test')
   fs.writeFileSync(tmpfile, 'https://github.com/jprichardson/node-fs-extra/pull/141')
   var fd = fs.openSync(tmpfile, 'r+')
   fs.futimesSync(fd, d, d)
   fs.closeSync(fd)
-  return fs.statSync(tmpfile).mtime > 0
+  return fs.statSync(tmpfile).mtime > 1435410243000
 }
 
 function timeRemoveMillis (timestamp) {