Subject: bug#40825: Teeworlds fails to load sound files

From: pkill9 <[email-masked]>
Date: Fri, 24 Apr 2020 19:12:58 +0100

I've attached a log.

It seems to fail to load all the sound files, e.g.
```
[2020-04-24 19:09:35][sound/wv]: failed to open audio/music_menu.wv:
can't open file
```.

I don't think it is failing to find them, because they are in
<teeworlds-package>/share/teeworlds/data/audio, and it successfully
finds another file in the data subdirectory from seeing that log:
```
[2020-04-24 19:09:35][datafile]: loading.
filename='ui/themes/winter_night.map'
```