findmissing: initdb_stable: Reduce logging noise

When checking out and updating a branch we don't need to see git output
in the log unless there is an error. The branch name in question is
already logged. Silence git to reduce logging noise.

BUG=None
TEST=Run on GCE

Change-Id: Id105a87cc5b5a4db457b884cdd226de1d2e120e5
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dev-util/+/2207526
Reviewed-by: Curtis Malainey <cujomalainey@chromium.org>
Commit-Queue: Guenter Roeck <groeck@chromium.org>
Tested-by: Guenter Roeck <groeck@chromium.org>
1 file changed