There is an updated pull request by mhmdanas against master on the void-packages repository

https://github.com/mhmdanas/void-packages grep-3.9
https://github.com/void-linux/void-packages/pull/42648

grep, chroot-grep: update to 3.11.

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#### Testing the changes
- I tested the changes in this PR: **briefly** (both grep and chroot-grep)

@Gottox

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A patch file from https://github.com/void-linux/void-packages/pull/42648.patch is attached