CHERRY-PICK: get_version: revise GetFirmwareVersions regular expression

The number of space characters in version line from
chromeos-firmwareupdate might be zero, so change '\s+' to '\s*'.

BUG=none
TEST=manually

Change-Id: I20bb2b898af1a3d326f8b4f03eaa97b2b025e2e9
Reviewed-on: https://chromium-review.googlesource.com/564979
Reviewed-by: Youcheng Syu <youcheng@chromium.org>
Commit-Queue: Jesper Lin <jesper_lin@wistron.corp-partner.google.com>
Tested-by: Jesper Lin <jesper_lin@wistron.corp-partner.google.com>
1 file changed