recover_duts: double quote $1 to prevent globbing

Fix shellcheck warning.

BUG=none
TEST=repo upload .

Change-Id: Iac23eeb2dd43e38c624465c30c8d383712d0d934
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crostestutils/+/4057325
Reviewed-by: Brian Norris <briannorris@chromium.org>
Tested-by: Grant Grundler <grundler@chromium.org>
Commit-Queue: Grant Grundler <grundler@chromium.org>
1 file changed