Use ip address for default InfluxDB ip in config

Helps with initial setup if localhost cannot be resolved due to the pure
go resolver.

etc/telegraf_windows.conf

@@ -63,8 +63,8 @@
   # The full HTTP or UDP endpoint URL for your InfluxDB instance.
   # Multiple urls can be specified but it is assumed that they are part of the same
   # cluster, this means that only ONE of the urls will be written to each interval.
-  # urls = ["udp://localhost:8089"] # UDP endpoint example
-  urls = ["http://localhost:8086"] # required
+  # urls = ["udp://127.0.0.1:8089"] # UDP endpoint example
+  urls = ["http://127.0.0.1:8086"] # required
   # The target database for metrics (telegraf will create it if not exists)
   database = "telegraf" # required
   # Precision of writes, valid values are "ns", "us" (or "µs"), "ms", "s", "m", "h".