``` 2023-11-19T05:33:05.421+02:00 WARN [qtp925335889-44] [puppetserver] Puppet Calling function empty() with Numeric value is deprecated. (file: /usr/local/etc/puppet/code/environments/production/modules/dns/manifests/logging/channel.pp, line: 61) ```
Since we have data-types in place (`Optional[Integer]`), we do not need to care about an empty String. Only `undef` will evaluate to false, and it is the precise case we want to raise an error for.
Fix calling function empty() with Numeric value
This produce a warning:
```
2023-11-19T05:33:05.421+02:00 WARN [qtp925335889-44] [puppetserver] Puppet Calling function empty() with Numeric value is deprecated. (file: /usr/local/etc/puppet/code/environments/production/modules/dns/manifests/logging/channel.pp, line: 61)
```
Since we have data-types in place (`Optional[Integer]`), we do not need
to care about an empty String. Only `undef` will evaluate to false, and
it is the precise case we want to raise an error for.