David Frank authored Jun 11, 2021 and Tobias Lasser committed Jun 11, 2021

The clang-format test script now relies on clang-format's (now) in-build
functionality to check for wrong formatting instead of actually
performing or committing the formated changes and then reverting them.
From a perceived behaviour standpoint nothing has changed, it should now
only be more convenient to use the script, as it doesn't require a
clean git state anymore.

Further, all formatting and linting scripts run only on the changed
files rather than on the whole codebase. Plus they have some nicer
looking output :^)