rfcdiff
compares two internet draft files and outputs the difference
RUN apt-get update && \
apt-get install -y rfcdiff
RUN apt-get update && \
apt-get install -y rfcdiff
RUN apt-get update && \
apt-get install -y rfcdiff
RUN dnf install -y rfcdiff
RUN apt-get update && \
apt-get install -y rfcdiff