Fix Locale Generation

Author: djarbz

images/minimal/ubuntu.Dockerfile

@@ -12,8 +12,14 @@ RUN apt-get update && \
     sudo \
     && rm -rf /var/lib/apt/lists/*
 
+# Generate the desired locale (en_US.UTF-8)
+RUN locale-gen en_US.UTF-8
+
 # Make typing unicode characters in the terminal work.
 ENV LANG=en_US.UTF-8
+ENV LANGUAGE=en_US.UTF-8
+ENV LC_ALL=en_US.UTF-8
+
 # Remove the `ubuntu` user and add a user `coder` so that you're not developing as the `root` user
 RUN userdel -r ubuntu && \
     useradd coder \