xbuddy: fix latest-dev keyword

crash flash was not able to install image using latest-dev keyword.
Listing directory in _LS was not working.

BUG=chromium:704174
TEST=Check 'cros flash <ip> xbuddy://remote/eve/latest-dev/test' works.

Change-Id: Ic8e9465836308d7897c67861a13527415cd0c2dc
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/465447
Reviewed-by: Xixuan Wu <xixuan@chromium.org>
1 file changed