Reduce the max tries for logging system tests (#3708)

Author: liyanhui1228

logging/nox.py

@@ -74,9 +74,10 @@ def system_tests(session, python_version):
     session.run(
         'py.test',
         '-vvv',
+        '-s',
         'tests/system.py',
         *session.posargs,
-        success_codes=range(0, 100),
+        success_codes=range(0, 100)
     )
 
 

logging/tests/system.py

@@ -116,7 +116,7 @@ def setUp(self):
         self._handlers_cache = logging.getLogger().handlers[:]
 
     def tearDown(self):
-        retry = RetryErrors(NotFound, max_tries=10)
+        retry = RetryErrors(NotFound, max_tries=9)
         for doomed in self.to_delete:
             retry(doomed.delete)()
         logging.getLogger().handlers = self._handlers_cache[:]