Fix bad output filter in logging demo tests.

Signed-off-by: Michel Hidalgo <michel@ekumenlabs.com>

Author: hidmic

logging_demo/test/test_logging_demo.py.in

@@ -50,13 +50,13 @@ class TestLoggingDemo(unittest.TestCase):
         proc_output.assertWaitFor(
             expected_output=launch_testing.tools.expected_output_from_file(
                 path='@EXPECTED_OUTPUT_LOGGING_DEMO_MAIN_DEFAULT_SEVERITY@'
-            ), process=process_under_test, output_filter=self.output_filter, timeout=10
+            ), process=process_under_test, output_filter=TestLoggingDemo.output_filter, timeout=30
         )
 
     def test_debug_severity(self, proc_output, process_under_test):
         """Test process' output at debug severity."""
         proc_output.assertWaitFor(
             expected_output=launch_testing.tools.expected_output_from_file(
                 path='@EXPECTED_OUTPUT_LOGGING_DEMO_MAIN_DEBUG_SEVERITY@'
-            ), process=process_under_test, output_filter=self.output_filter, timeout=10
+            ), process=process_under_test, output_filter=TestLoggingDemo.output_filter, timeout=30
         )