[autotest] fix the gs link for special tasks

TEST=Manually open the link in browser.
BUG=chromium:410972
DEPLOY=apache

Change-Id: I8b3eaa17a97b2cf25abca7c095d3950200ce4544
Reviewed-on: https://chromium-review.googlesource.com/216479
Reviewed-by: Simran Basi <sbasi@chromium.org>
Commit-Queue: Fang Deng <fdeng@chromium.org>
Tested-by: Fang Deng <fdeng@chromium.org>
1 file changed