samples/landlock: Format with clang-format

samples/landlock: Format with clang-format

commit 81709f3dccacf4104a4bc2daa80bdd767a9c4c54 upstream.

Let's follow a consistent and documented coding style.  Everything may
not be to our liking but it is better than tacit knowledge.  Moreover,
this will help maintain style consistency between different developers.

This contains only whitespace changes.

Automatically formatted with:
clang-format-14 -i samples/landlock/*.[ch]

Link: https://lore.kernel.org/r/20220506160513.523257-8-mic@digikod.net
Cc: stable@vger.kernel.org
Signed-off-by: Mickaël Salaün <mic@digikod.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>