message: Removed unnecessary whitespacing
diff: FROM ubuntu:16.04
  LABEL authors="xiaobo (peterwillcn@gmail.com), toonsevrin (toonsevrin@gmail.com)"
  -
  -
  -
  RUN echo 'APT::Install-Recommends 0;' >> /etc/apt/apt.conf.d/01norecommends \
  && echo 'APT::Install-Suggests 0;' >> /etc/apt/apt.conf.d/01norecommends \
  && apt-get update \
  