message: Fix for download error state when curl is missing
diff: @@ -80,6 +80,10 @@ download_and_extract() {
  local tempfile=${tempdir}/temp_file
  local curl_retries=3
  + command -v curl >/dev/null 2>&1 || {
  + echo >&2 "The required 'curl' tool isn't installed. Try 'apt-get install curl'."; exit 1;
  + }
  +
  echo "downloading ${url}" >&2
  mkdir -p "${dir}"
  # We've been seeing occasional 56 errors from valid URLs, so set up a retry
  