anchor.diff:  
   ENV     PATH `which rstudio-server`:${PATH}
   
  -RUN     apt-get clean \
  -        && rm -rf /var/lib/apt/lists/
  +RUN     apt-get clean
   
   COPY    supervisord.conf /etc/supervisor/conf.d/supervisord.conf
   
  
positive.code:         && git config --system push.default simple \
          && echo "dst:science" | chpasswd
  
  RUN     apt-get -y install --no-install-recommends \
          wget \
          ca-certificates
  
  
negative.code: 
  ENV     LOCALE en_GB.UTF-8
  
  RUN     apt-get install -y locales \
          && echo ${LOCALE} UTF-8 >> /etc/locale.gen \
          && locale-gen ${LOCALE} \
          && /usr/sbin/update-locale LANG=${LOCALE}
  