对比配置文件 左右对比 Diff

# Since Docker users using "RUN apt-get update && apt-get install -y ..." in # their Dockerfiles don't go delete the lists files afterwards, we want them to # be as small as possible on-disk, so we explicitly request that Apt keep them # compressed on-disk too instead of decompressing them. # For comparison, an "apt-get update" layer without this on a pristine # "debian:wheezy" base image was "29.88 MB", where with this it was only # "8.273 MB". Acquire::GzipIndexes "true";