Fix warning message

Author: drbrain

lib/influxdb/client/http.rb

@@ -62,7 +62,7 @@ def connect_with_retry
           raise InfluxDB::ConnectionError, "Tried #{retry_count - 1} times to reconnect but failed."
         end
 
-        log(:warn) { "Failed to contact host #{host}: #{e.inspect} - retrying in #{delay}s." }
+        log(:warn) { "Failed to contact host #{http.address}: #{e.inspect} - retrying in #{delay}s." }
         sleep delay
         delay = [config.max_delay, delay * 2].min