Logging format for Gemini servers (addition)

[Anna “CyberTailor”]

Some missing stuff

### References for ident protocol:

Specification
=> gemini://gemini.bortzmeyer.org/rfc-mirror/rfc1413.txt

Wikipedia article (see "Software" section for identd servers)
=> https://en.wikipedia.org/wiki/Ident_Protocol

## Sample query

```python
import socket
with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as client:
    client.settimeout(1)
    client.connect((foreign_host, 113))
    client.send(f"{foreign_port},{local_port}\r\n".encode())
    result = client.recv(4096).decode().split(":")[-1].strip()
```