pylint: Fix use-implicit-booleaness-not-comparison

Pylint 2.12.0 introduced new checker:
> Used when Pylint detects that collection literal comparison is being
  used to check for emptiness; Use implicit booleaness insteadof a
  collection classes; empty collections are considered as false

See pylint-dev/pylint#4774

Fixes: fleet-commander#279
Signed-off-by: Stanislav Levin <slev@altlinux.org>

admin/fleetcommander/fcfreeipa.py

@@ -249,7 +249,7 @@ def _update_profile_rules(self, profile, oldname=None):
             rule = self.get_profile_rule(name)
             applies = self._get_profile_applies_from_rule(rule)
             logger.debug("FreeIPAConnector: Applies after update: %s", applies)
-            if applies["hosts"] == [] and applies["hostgroups"] == []:
+            if not applies["hosts"] and not applies["hostgroups"]:
                 logger.debug("FreeIPAConnector: Setting hostcategory to all")
                 parms["hostcategory"] = "all"
                 try:

tests/_logger_test_suite.py

@@ -84,7 +84,8 @@ def test_03_inhibitor_uninhibit(self):
             inhibitor.screensavers["org.freedesktop.ScreenSaver"]["cookie"] == 9191
         )
         inhibitor.uninhibit()
-        self.assertTrue(inhibitor.screensavers == {})
+        self.assertIsInstance(inhibitor.screensavers, dict)
+        self.assertFalse(inhibitor.screensavers)
 
 
 class TestDconfLogger(unittest.TestCase):