Manually set GitShortHash = UNKNOWN to work around an update-version.sh bug
Manually set GitShortHash = UNKNOWN to work around an update-version.sh bug

kiranmeduri/amazon-ecs-agent,kiranmeduri/amazon-ecs-agent,aws/amazon-ecs-init,rjschwei/amazon-ecs-init,aws/amazon-ecs-init,rjschwei/amazon-ecs-init,aws/amazon-ecs-agent,aws/amazon-ecs-init,aws/amazon-ecs-agent,kiranmeduri/amazon-ecs-agent,aws/amazon-ecs-agent,aws/amazon-ecs-agent,kiranmeduri/amazon-ecs-agent