[PR PATCH] nix: update to 2.8.1.

[faulesocke <faulesocke@users.noreply.github.com>]

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

https://github.com/faulesocke/void-packages nix
https://github.com/void-linux/void-packages/pull/37213

nix: update to 2.8.1.
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#### Testing the changes
- I tested the changes in this PR: **YES**

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#### New package
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#### Local build testing
- I built this PR locally for my native architecture, (x86_64-glibc)


A patch file from https://github.com/void-linux/void-packages/pull/37213.patch is attached

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From 2d0b1f1509ad26f0784e4b4e8074fdbfdb0aae32 Mon Sep 17 00:00:00 2001
From: Urs Schulz <voidpkgs@ursschulz.de>
Date: Fri, 20 May 2022 12:53:43 +0200
Subject: [PATCH] nix: update to 2.8.1.

---
 srcpkgs/nix/template | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/srcpkgs/nix/template b/srcpkgs/nix/template
index b6352688454a..bb585b6d7d54 100644
--- a/srcpkgs/nix/template
+++ b/srcpkgs/nix/template
@@ -1,6 +1,6 @@
 # Template file for 'nix'
 pkgname=nix
-version=2.8.0
+version=2.8.1
 revision=1
 build_style=gnu-configure
 # Use /nix/var as suggested by the official Manual.
@@ -17,7 +17,7 @@ license="LGPL-2.1-or-later"
 homepage="https://nixos.org/nix/"
 changelog="https://nixos.org/releases/${pkgname}/${pkgname}-${version}/manual/#sec-relnotes"
 distfiles="https://github.com/NixOS/nix/archive/refs/tags/${version}.tar.gz"
-checksum=91a7f2bcdde3263927d842f04a345ed77319148c700e2c8be01498724e6808c0
+checksum=6f19455775523fca4ae4096e6a6fc493f577198b968811f7fa77eb1fa5213b43
 disable_parallel_build=yes
 nocross="cross build populates /usr/lib32 with libraries and tries to link against them"