New comment by zdtcd on void-packages repository

https://github.com/void-linux/void-packages/pull/12714#issuecomment-506972288
Comment:
> Please set `create_wrksrc=yes` instead of do_extract.
> They didn't said what LGPL version, so we can use any.

Yeah, from LGPL, if they don't specify which version of LGPL, we can use whichever we like.
2.1 would be a sensible choice