relevant changes; - moby/moby#38006 / docker/engine#114 client: use io.LimitedReader for reading HTTP error - moby/moby#38634 / docker/engine#167 pkg/archive:CopyTo(): fix for long dest filename - fixes docker/for-linux#484 for 18.09 - moby/moby#38944 / docker/engine#183 gitutils: add validation for ref - moby/moby#37780 / docker/engine#55 pkg/progress: work around closing closed channel panic - addresses moby/moby#/37735 pkg/progress: panic due to race on shutdown Signed-off-by: Sebastiaan van Stijn <github@gone.nl>