New comment by Anachron on void-packages repository

https://github.com/void-linux/void-packages/issues/28050#issuecomment-763483375

Comment:
You can clean the builddir using the `./xbps-src clean` action:

```
clean [pkgname]
    Removes auto dependencies, cleans up <masterdir>/builddir and <masterdir>/destdir.
    If <pkgname> argument is specified, package files from <masterdir>/destdir and its
    build directory in <masterdir>/buiddir are removed.
```

As always, make sure to read the manual/help.