added bypassing of thread_sleep() in certain cases.

this came from KarlH.

svn path=/trunk/icecast/; revision=5526

src/stats.c

@@ -444,6 +444,7 @@ static void *_stats_thread(void *arg)
             _free_event(event);
 
             thread_mutex_unlock(&_stats_mutex);
+            continue;
         } else {
             thread_mutex_unlock(&_global_event_mutex);
         }