telegraf invalid TOML syntax

[XiaojueGuan]

(deploy) root@k-node1:~# pip freeze | grep kolla
kolla==9.1.0.dev387
kolla-ansible==9.1.0.dev588

the globals.yml file is https://github.com/albertjone/kolla-config/blob/master/kolla-config/multinode/globals.yml

when use kolla-ansible to deploy it failed with following detail:
```
+ sudo -E kolla_set_configs
INFO:__main__:Loading config file at /var/lib/kolla/config_files/config.json
INFO:__main__:Validating config file
INFO:__main__:Kolla config strategy set to: COPY_ALWAYS
INFO:__main__:Copying service configuration files
INFO:__main__:Deleting /etc/telegraf/telegraf.conf
INFO:__main__:Copying /var/lib/kolla/config_files/telegraf.conf to /etc/telegraf/telegraf.conf
INFO:__main__:Setting permission for /etc/telegraf/telegraf.conf
INFO:__main__:Writing out command to execute
++ cat /run_command
+ CMD='telegraf -config /etc/telegraf/telegraf.conf -config-directory /etc/telegraf/telegraf.d/'
+ ARGS=
+ sudo kolla_copy_cacerts
+ [[ ! -n '' ]]
+ . kolla_extend_start
++ TELEGRAF_LOG_DIR=/var/log/kolla/telegraf
++ [[ ! -d /var/log/kolla/telegraf ]]
++ mkdir -p /var/log/kolla/telegraf
+++ stat -c %a /var/log/kolla/telegraf
++ [[ 2755 != \7\5\5 ]]
++ chmod 755 /var/log/kolla/telegraf
+ echo 'Running command: '\''telegraf -config /etc/telegraf/telegraf.conf -config-directory /etc/telegraf/telegraf.d/'\'''
+ exec telegraf -config /etc/telegraf/telegraf.conf -config-directory /etc/telegraf/telegraf.d/
Running command: 'telegraf -config /etc/telegraf/telegraf.conf -config-directory /etc/telegraf/telegraf.d/'
2020-04-28T09:53:24Z I! Starting Telegraf 1.14.1
2020-04-28T09:53:24Z E! [telegraf] Error running agent: Error parsing /etc/telegraf/telegraf.conf, line 20: invalid TOML syntax
+ sudo -E kolla_set_configs
INFO:__main__:Loading config file at /var/lib/kolla/config_files/config.json
INFO:__main__:Validating config file
INFO:__main__:Kolla config strategy set to: COPY_ALWAYS
INFO:__main__:Copying service configuration files
INFO:__main__:Deleting /etc/telegraf/telegraf.conf
INFO:__main__:Copying /var/lib/kolla/config_files/telegraf.conf to /etc/telegraf/telegraf.conf
INFO:__main__:Setting permission for /etc/telegraf/telegraf.conf
INFO:__main__:Writing out command to execute
INFO:__main__:Setting permission for /var/log/kolla/telegraf
```

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/724215

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/724215
Committed: https://git.openstack.org/cgit/openstack/kolla-ansible/commit/?id=7ad7c8804641bdb0dfecc20e0f221f74a52f717b
Submitter: Zuul
Branch: master

commit 7ad7c8804641bdb0dfecc20e0f221f74a52f717b
Author: xiaojueguan <email address hidden>
Date: Wed Apr 29 11:11:05 2020 +0800

    Fix telegraf invalid TOML syntax

    Change-Id: Ie3022d1721f43dc84e4228331d0d2f6f3a3c7ebd
    Closes-Bug: 1875613