message: Add comments for proxy info per code review
diff: @@ -80,7 +80,8 @@ function build_container()
  shift
  TF_DOCKER_BUILD_ARGS=("${@}")
  - # Add the proxy info build args
  + # Add the proxy info build args. This will be later on passed to docker as
  + # --build-arg so that users behind corporate proxy can build the images
  TF_DOCKER_BUILD_ARGS+=("--build-arg http_proxy=${http_proxy}")
  TF_DOCKER_BUILD_ARGS+=("--build-arg https_proxy=${https_proxy}")
  TF_DOCKER_BUILD_ARGS+=("--build-arg socks_proxy=${socks_proxy}")
  