There's a merged pull request on the void-packages repository

man-pages: fix links to moved manpages
https://github.com/void-linux/void-packages/pull/35492

Description:
The template file renames `rand.3` and `err.3` to `glibc-rand.3` and `glibc-err.3` to resolve conflict with openssl manpages, but it doesn't fix manpages linking to the old version. These manpages (`warnx(3)`, `srand(3)` ...) then won't know where the manpages are. This PR redirects them to the renamed version.

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#### Testing the changes
- I tested the changes in this PR: **YES**