Explain that the script is only for the future
#!/usr/bin/env python3
"""Check or fix the code style by running Uncrustify.
+
+Note: The code style enforced by this script is not yet introduced to
+Mbed TLS. At present this script will only be used to prepare for a future
+change of code style.
"""
# Copyright The Mbed TLS Contributors
# SPDX-License-Identifier: Apache-2.0
