tree ab600d9a90f498b868ae5e6c167181c0e79a202f
parent bb20778f7ee150afe8c886e6b9e415e46f1e5575
author Vojtech Bocek <vbocek@gmail.com> 1379430310 +0200
committer Vojtech Bocek <vbocek@gmail.com> 1379430369 +0200

Never generate empty backup name

* Backup would then go to /sdcard/TWRP/*serial_num*/
  (without any subfolder) and restore would not be able to find it.

Signed-off-by: Vojtech Bocek <vbocek@gmail.com>