message: Fix deprecated args to buildifier
diff: @@ -306,7 +306,7 @@ do_buildifier(){
  if [[ -s ${BUILDIFIER_OUTPUT_FILE} ]]; then
  echo "FAIL: buildifier found errors and/or warnings in above BUILD files."
  echo "buildifier suggested the following changes:"
  - buildifier -v -mode=diff ${BUILD_FILES}
  + buildifier -v -mode=diff -diff_command=diff ${BUILD_FILES}
  echo "Please fix manually or run buildifier <file> to auto-fix."
  return 1
  else
  