sysv-generator test: Fix random ordering failure

test_simple_escaped() sometimes fails with

AssertionError: Lists differ: ['foo\\x2b.service', 'foo-admin.service'] != ['foo-admin.service', 'foo\\x2b.service']

We don't need to assume any order here, so compare them as a set, not a list.

test/sysv-generator-test.py

@@ -196,7 +196,7 @@ class SysvGeneratorTest(unittest.TestCase):
         self.add_sysv('foo+', {})
         self.add_sysv('foo-admin', {})
         err, results = self.run_generator()
-        self.assertEqual(list(results), ['foo-admin.service', 'foo\\x2b.service'])
+        self.assertEqual(set(results), {'foo-admin.service', 'foo\\x2b.service'})
         self.assertNotIn('Overwriting', err)
 
     def test_simple_enabled_some(self):