Fix argument name
The buildifier tool is part of the Bazel tools not the core Bazel repo,
and the two are not released in sync (but appear to share the same
version numbering).
@@ -17,10 +17,10 @@ RUN npm install --global prettier
RUN prettier --version
# Install buildifier.
-ARG BAZEL_VERSION=0.28.0
+ARG BAZEL_TOOLS_VERSION=0.28.0
ARG BUILDIFIER_DIR=/usr/local/buildifier
RUN mkdir -p $BUILDIFIER_DIR/bin
-RUN curl -L https://github.com/bazelbuild/buildtools/releases/download/${BAZEL_VERSION}/buildifier > $BUILDIFIER_DIR/bin/buildifier
+RUN curl -L https://github.com/bazelbuild/buildtools/releases/download/${BAZEL_TOOLS_VERSION}/buildifier > $BUILDIFIER_DIR/bin/buildifier
ENV PATH "$BUILDIFIER_DIR/bin:$PATH"
RUN chmod +x $BUILDIFIER_DIR/bin/buildifier
