increase leniency count

Signed-off-by: Ceki Gulcu <ceki@qos.ch>

Author: ceki

slf4j-api/src/test/java/org/slf4j/testHarness/MultithreadedInitializationTest.java

@@ -36,7 +36,7 @@ public void multiThreadedInitialization() throws InterruptedException, BrokenBar
 
         assertAllSubstLoggersAreFixed();
         long recordedEventCount = getRecordedEventCount();
-        int LENIENCY_COUNT = 21;
+        int LENIENCY_COUNT = 30;
 
         long expectedEventCount = eventCount.get() + extraLogEvents();