Update changelog

(cherry picked from commit 25b04d4720926c47eef54e61ce79951fc8b34d49)

CHANGELOG.md

@@ -1,3 +1,26 @@
+## v1.19.3 [2021-08-18]
+
+#### Bugfixes
+
+  - [#9639](https://github.com/influxdata/telegraf/pull/9639) Update sirupsen/logrus module from 1.7.0 to 1.8.1
+  - [#9638](https://github.com/influxdata/telegraf/pull/9638) Update testcontainers/testcontainers-go module from 0.11.0 to 0.11.1
+  - [#9637](https://github.com/influxdata/telegraf/pull/9637) Update golang/snappy module from 0.0.3 to 0.0.4
+  - [#9636](https://github.com/influxdata/telegraf/pull/9636) Update aws/aws-sdk-go-v2 module from 1.3.2 to 1.8.0
+  - [#9605](https://github.com/influxdata/telegraf/pull/9605) `inputs.prometheus` Fix prometheus kubernetes pod discovery
+  - [#9606](https://github.com/influxdata/telegraf/pull/9606) `inputs.redis` Improve redis commands documentation
+  - [#9566](https://github.com/influxdata/telegraf/pull/9566) `outputs.cratedb` Replace dots in tag keys with underscores
+  - [#9401](https://github.com/influxdata/telegraf/pull/9401) `inputs.clickhouse` Fix panic, improve handling empty result set
+  - [#9583](https://github.com/influxdata/telegraf/pull/9583) `inputs.opcua` Avoid closing session on a closed connection
+  - [#9576](https://github.com/influxdata/telegraf/pull/9576) `processors.aws` Refactor ec2 init for config-api
+  - [#9571](https://github.com/influxdata/telegraf/pull/9571) `outputs.loki` Sort logs by timestamp before writing to Loki
+  - [#9524](https://github.com/influxdata/telegraf/pull/9524) `inputs.opcua` Fix reconnection regression introduced in 1.19.1
+  - [#9581](https://github.com/influxdata/telegraf/pull/9581) `inputs.kube_inventory` Fix k8s nodes and pods parsing error
+  - [#9577](https://github.com/influxdata/telegraf/pull/9577) Update sensu/go module to v2.9.0
+  - [#9554](https://github.com/influxdata/telegraf/pull/9554) `inputs.postgresql` Normalize unix socket path
+  - [#9565](https://github.com/influxdata/telegraf/pull/9565) Update hashicorp/consul/api module to 1.9.1
+  - [#9552](https://github.com/influxdata/telegraf/pull/9552) `inputs.vsphere` Update vmware/govmomi module to v0.26.0 in order to support vSphere 7.0
+  - [#9550](https://github.com/influxdata/telegraf/pull/9550) `inputs.opcua` Do not skip good quality nodes after a bad quality node is encountered
+
 ## v1.19.2 [2021-07-28]
 
 #### Release Notes

etc/telegraf.conf

@@ -506,6 +506,8 @@
 #   table = "metrics"
 #   # If true, and the metrics table does not exist, create it automatically.
 #   table_create = true
+#   # The character(s) to replace any '.' in an object key with
+#   key_separator = "_"
 
 
 # # Configuration for DataDog API to send metrics to.
@@ -5741,9 +5743,13 @@
 #
 #   ## Optional. Specify redis commands to retrieve values
 #   # [[inputs.redis.commands]]
-#   # command = ["get", "sample-key"]
-#   # field = "sample-key-value"
-#   # type = "string"
+#   #   # The command to run where each argument is a separate element
+#   #   command = ["get", "sample-key"]
+#   #   # The field to store the result in
+#   #   field = "sample-key-value"
+#   #   # The type of the result
+#   #   # Can be "string", "integer", or "float"
+#   #   type = "string"
 #
 #   ## specify server password
 #   # password = "s#cr@t%"