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

https://github.com/avoidr/void-packages vkpurge
https://github.com/void-linux/void-packages/pull/24298

base-files: vkpurge: fix parameter expansion in list_kernels()
This fixes next-kernels from having too much string of their versions
stripped.

Next-kernel versions have the format "vmlinu[xz]-<ver>-next-<date>".
Thus, the string was wrongly shortened to "<date>", instead of the
correct "<ver>-next-<date>".

A patch file from https://github.com/void-linux/void-packages/pull/24298.patch is attached