Android: Fix fetch_all.py's CIPD commands

Print CIPD commands that avoid creating new ones if existing CIPD
packages are found with the same tags, display those with
`cipd describe` instead.

Bug: 867454
Change-Id: I9cccdcf55d5ddb02a98f4dd8d530d9240618b817
Reviewed-on: https://chromium-review.googlesource.com/1155480
Reviewed-by: John Budorick <jbudorick@chromium.org>
Commit-Queue: Peter Wen <wnwen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#579126}
1 file changed