New comment by TinfoilSubmarine on void-packages repository

https://github.com/void-linux/void-packages/pull/39416#issuecomment-1255122073

Comment:
> There was some reason I chose TMPDIR over TMP, but I don't remember now. We'll have to dig into this and determine whether the issue is still relevant.
> 
> When you build the package, please inspect `masterdir/tmp` to see if the change to TMP results in artifacts left in that directory.

```
$ ls -a masterdir/tmp
.cache
```

but this was here before the change as well...