anchor.diff:  ENV LANGUAGE en_US:en
   ENV LC_ALL en_US.UTF-8
   
  -RUN apt-get -y update && apt-get -y upgrade
  -RUN apt-get -y install -y \ 
  +RUN apt-get update && apt-get -y upgrade
  +RUN apt-get install -y \
   curl \
   build-essential \
   libncurses5-dev \
  
positive.code: FROM ubuntu
  MAINTAINER Songge Chen <chen.s@wustl.edu>
  
  ENV project-name belvedere
  
negative.code: RUN chmod 755 /root/belvedere/scripts/ci/test.sh
  
  RUN /root/belvedere/scripts/ci/prepare.sh
  RUN /root/belvedere/scripts/ci/test.sh
  