online: don't touch stat file at init if it already exists

This delays the update until the actual iteration starts.

locklost/online.py

@@ -102,7 +102,8 @@ if __name__ == '__main__':
         format='%(asctime)s %(message)s'
     )
     stat_file = os.path.join(config.CONDOR_ONLINE_DIR, 'stat')
-    open(stat_file, 'w').close()
+    if not os.path.exists(stat_file):
+        open(stat_file, 'w').close()
     search.search_iterate(
         event_callback=analyze.analyze_condor,
         stat_file=stat_file,