### Description
If the title or artist metadata in libretime has a newline, that file is
not played as telnet takes the newline as a command enter in the middle
of the command.
**This is a new feature**:
No
**I have updated the documentation to reflect these changes**:
No
### Testing Notes
**What I did:**
I spun up a fresh local LibreTime instance, uploaded a track with a
newline in the creator field. I then created a show and added the track
to the show and verified that the track did not play with error:
```
playout-1 | 2025-06-06 17:41:49,888 | ERROR | libretime_playout.liquidsoap.client._client:_set_var:50 - ERROR: unknown command, type "help" to get a list of commands.
```
I then added my fix and verified that the track did play as it was
supposed to.
**How you can replicate my testing:**
See the above section
---------
Co-authored-by: jo <ljonas@riseup.net>
d7987bb4ef