New comment by SorrelArticulata on void-packages repository

https://github.com/void-linux/void-packages/issues/40858#issuecomment-1332053131

Comment:
It looks like gpsd is changing to user 'gpsd' and group 'gpsd'; instead of user 'gpsd' and group 'dialout' (group of provided special serial file).  This does not match what the manpage says and is probably the cause of the issue here.

You can confirm this by (1) looking at the output of gpsd with verbose flags and then (2) checking the user/groupids with getend:
```
...
gpsd:INFO: running with effective group ID 977
gpsd:INFO: running with effective user ID 981
...
```
```
$ getent group 977
gpsd:x:977:
$ getent passwd 981
gpsd:x:981:977:gpsd unprivileged user:/var/empty:/sbin/nologin
```