title: how to preserve file modification time with LFTP
body: <p>I wrote a script that sync several servers at once. One of my problem is that I cannot get LFTP to preserve initial file modification time. So basically, it always upload all the files while only some changed.</p>
  
  <p>Do you know how to force LFTP to preserve file modification time when downloading or uploading?</p>
  
  <p>Thanks for any help.</p>
  
  <p>Korchkidu</p>