out_influxdb: Add a description for Add_Integer_Suffix parameter (#1451)

* out_influxdb: Add a description for Use_Integer parameter

Signed-off-by: Hiroshi Hatake <hiroshi@chronosphere.io>

* Update pipeline/outputs/influxdb.md

Co-authored-by: Adam Locke <adam.locke@chronosphere.io>
Signed-off-by: Hiroshi Hatake <hiroshi@chronosphere.io>

* out_influxdb: Sync the parameter name change

Signed-off-by: Hiroshi Hatake <hiroshi@chronosphere.io>

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Signed-off-by: Hiroshi Hatake <hiroshi@chronosphere.io>
Co-authored-by: Hiroshi Hatake <hiroshi@choronosphere.io>
Co-authored-by: Adam Locke <adam.locke@chronosphere.io>

Author: 3 people

pipeline/outputs/influxdb.md

@@ -19,6 +19,7 @@ The **influxdb** output plugin, allows to flush your records into a [InfluxDB](h
 | Tag\_Keys | Space separated list of keys that needs to be tagged |  |
 | Auto\_Tags | Automatically tag keys where value is _string_. This option takes a boolean value: True/False, On/Off. | Off |
 | Uri | Custom URI endpoint | |
+| Add\_Integer\_Suffix | Use integer type of [influxdb's line protocol](https://docs.influxdata.com/influxdb/v1/write_protocols/line_protocol_reference/). This option takes a boolean value: `True|False`, `On|Off`. | `Off` |
 | Workers | The number of [workers](../../administration/multithreading.md#outputs) to perform flush operations for this output. | `0` |
 
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