update-kernel: fix missing shift
Just fixing a missing shift while parsing option --keys-dir.
Without this KEYS_DIR is set to the name of the option itself (ie "--keys-dir" or "-d" depending on the form used) instead of the option value.
Just fixing a missing shift while parsing option --keys-dir.
Without this KEYS_DIR is set to the name of the option itself (ie "--keys-dir" or "-d" depending on the form used) instead of the option value.