There is a new pull request by meator against master on the void-packages repository

https://github.com/meator/void-packages libmpack
https://github.com/void-linux/void-packages/pull/32627

libmpack: fix license and lint
<!-- Mark items with [x] where applicable -->
This PR fixes a typo in `license`, it adds the license to the package and moves `make_check_target` to make `xlint` happy.
#### General
- [ ] This is a new package and it conforms to the [quality requirements](https://github.com/void-linux/void-packages/blob/master/Manual.md#quality-requirements)

#### Have the results of the proposed changes been tested?
- [ ] I use the packages affected by the proposed changes on a regular basis and confirm this PR works for me
- [x] I generally don't use the affected packages but briefly tested this PR

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A patch file from https://github.com/void-linux/void-packages/pull/32627.patch is attached