selftests: cgroup: Fix missing newline in test_zswap_writeback_one

Fixes malformed test output due to missing newline

Signed-off-by: Sebastian Chlad <sebastian.chlad@suse.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Sebastian Chlad 2025-07-02 18:40:10 +02:00 • committed by Tejun Heo
commit e07caae735