varnish plugin: decode bytes to str for python3

diff --git a/python.d/varnish.chart.py b/python.d/varnish.chart.py
index 2b1512f4e58b516c16ac7e6fad836ad95572236d..4b4daddd24d32d77d4a184b5085fe7f854646672 100644 (file)
--- a/python.d/varnish.chart.py
+++ b/python.d/varnish.chart.py
@@ -145,7 +145,7 @@ class Service(SimpleService):
         if not raw_data:
             return None
 
-        return raw_data
+        return raw_data.decode()
 
     def _get_data(self):
         """