cmd/gomote: add support for groups to the put command
cmd/gomote: add support for groups to the put command

For golang/go#53956.

Change-Id: I34b0896f4ba6a3b2b5f167e6040d56d54464e28a
Reviewed-on: https://go-review.googlesource.com/c/build/+/418936
Auto-Submit: Michael Knyszek <4473450dc5c88f06e1fb787f303d7805ec2aee65@google.com>
Run-TryBot: Michael Knyszek <4473450dc5c88f06e1fb787f303d7805ec2aee65@google.com>
TryBot-Result: Gopher Robot <66cb808b70d30c07676d5e946fee83fd561249e5@golang.org>
Reviewed-by: Carlos Amedee <ab5e2bca84933118bbc9d48ffaccce3bac4eeb64@golang.org>

golang/build,golang/build,golang/build,golang/build