statsd: added special repr for statsdclient for nicer debug

rhodecode/lib/statsd_client.py

@@ -25,6 +25,9 b' class StatsdClientClass(Singleton):'
     statsd_client = None
     statsd = None
 
+    def __repr__(self):
+        return f"{self.__class__}(statsd={self.statsd})"
+
     def __getattribute__(self, name):
 
         if name.startswith("statsd"):