one more try for pep257 compliance for the ping function

pmenglund · pmenglund · commit 738b033a242d · 2017-02-11T13:22:13.000-08:00
diff --git a/influxdb/client.py b/influxdb/client.py
@@ -411,10 +411,10 @@ def write_points(self,
                                       tags=tags, protocol=protocol)
 
     def ping(self):
-        """Check connectivity to InfluxDB
+        """Check connectivity to InfluxDB.
+
         :returns: The version of the InfluxDB the client is connected to
         """
-
         response = self.request(
             url="ping",
             method='GET',
