test alru: test description fixed by black

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@huawei.com>

Author: mmichal10

test/functional/tests/lazy_writes/cleaning_policy/test_alru.py

@@ -25,13 +25,13 @@
 @pytest.mark.require_disk("core", DiskTypeLowerThan("cache"))
 def test_alru_no_idle():
     """
-        title: Test ALRU with activity threshold set to 0
-        description: |
-          Verify that ALRU is able to perform cleaning if cache is under constant load and
-          activity threshold is set to 0. Constant load is performed by using fio instance running
-          in background.
-        pass_criteria:
-          - Dirty cache lines are cleaned successfully.
+    title: Test ALRU with activity threshold set to 0
+    description: |
+      Verify that ALRU is able to perform cleaning if cache is under constant load and
+      activity threshold is set to 0. Constant load is performed by using fio instance running
+      in background.
+    pass_criteria:
+      - Dirty cache lines are cleaned successfully.
     """
 
     with TestRun.step("Prepare configuration"):