build: Print a diff too
While we render it to JSON, it's convenient to have it in the logs
too.  We're already quite noisy, so this increases the information-to-spam
ratio.
@@ -144,6 +144,10 @@ else
fi
fi
+if [ -n "${previous_build}" ]; then
+ rpm-ostree --repo=${workdir}/repo-build db diff ${previous_commit} ${commit}
+fi
+
image_input_checksum=$((echo ${commit} && echo ${kickstart_checksum}) | sha256sum_str)
echo "New image input checksum: ${image_input_checksum}"
version=$(ostree --repo=${workdir}/repo-build show --print-metadata-key=version ${commit} | sed -e "s,',,g")
