Review Request 67489: Docker::__pull - docker pull stdout to /dev/null to avoid deadlock

f/1/ Testing --- make check, and applied to 1.2.1 and run without observed harm in an existing environment. Thanks, Kjetil Joergensen

Review Request 67478: Addition to contributors.yaml in peparation for submitting an actual patch

to contributors.yaml in preparation for submitting an actual patch Diffs - docs/contributors.yaml 24fc34b26 Diff: https://reviews.apache.org/r/67478/diff/1/ Testing --- Thanks, Kjetil Joergensen