Grafana logs to syslog server and specify port?

We would like to send Grafana system logs to our syslog server. However, I need to do it on a non standard port, for example 1518. What would I specify inside of custom.ini to achieve this?

#################################### Logging ##########################
[log]

Either “console”, “file”, “syslog”. Default is console and file

Use space to separate multiple modes, e.g. “console file”

mode = syslog

Either “debug”, “info”, “warn”, “error”, “critical”, default is “info”

level = info

[log.syslog]
;level =

log line format, valid options are text, console and json

format = text

Syslog network type and address. This can be udp, tcp, or unix. If left blank, the default unix endpoints will be used.

;network =
address = 10.10.1.57

Syslog facility. user, daemon and local0 through local7 are valid.

;facility =

Syslog tag. By default, the process’ argv[0] is used.

;tag =