message: Dockerfile: Clean up APT cache
diff: FROM osrf/ros:kinetic-desktop-xenial
  RUN apt-get update && apt-get install -y \
  - clang \
  - clang-format \
  - clang-tidy \
  - ros-kinetic-ros-control
  + clang-5.0 \
  + clang-format-5.0 \
  + clang-tidy-5.0 \
  + ros-kinetic-ros-control \
  + && rm -rf /var/lib/apt/lists/*
  