fix check() exception caching

diff --git a/plugins.d/python.d.plugin b/plugins.d/python.d.plugin
index d661495f6a33288cf4d5fe28109fcb8253292abc..a16e1b8ccfcdeece46becdc4498ea8984ba9c044 100755 (executable)
--- a/plugins.d/python.d.plugin
+++ b/plugins.d/python.d.plugin
@@ -369,7 +369,7 @@ class PythonCharts(object):
             except AttributeError:
                 self._stop(job, "no check")
             except (UnboundLocalError, Exception) as e:
-                self._stop(job, "misbehaving. Reason:", str(e))
+                self._stop(job, "misbehaving. Reason:" + str(e))
 
     def create(self):
         """