open https://gitlab.synchro.net/main/sbbs/-/issues/763

When using finger, the internal code is displayed if running a door program

```
bbs@bbs:/sbbs/mods$ finger @localhost
User Action Time-on Age Sex Node ------------------------- ------------------------------- -------- --- --- ---- nelgin running multirelaychat (P) 0:03:00 53 M 1 ```

I would prefer to see the actual name, which would be "Multi Relay Chat" in this case. I expect this could be added as an option such as include_doorname maybe?
--- SBBSecho 3.20-Linux
* Origin: Vertrauen - [vert/cvs/bbs].synchro.net (1:103/705)