Added bsdmainutils for column util

Dockerfile

@@ -22,6 +22,7 @@ RUN apt-get -y update \
         hunspell-en-us \
         sed \
         util-linux \
+        bsdmainutils \
     && rm -Rf /var/lib/apt/lists/*
 
 RUN python -m pip install -r /opt/checker/requirements.txt