From 87d614441d51da42d4d7102155e4535c64f8c1df Mon Sep 17 00:00:00 2001
From: rnhmjoj <rnhmjoj@inventati.org>
Date: Thu, 3 Dec 2020 21:57:09 +0100
Subject: [PATCH] nixos/documentation: silence man-db cache warnings

The output of the man-db command used to generate the caches is
irrelevant and can confuse users, let's hide it.
---
 nixos/modules/misc/documentation.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nixos/modules/misc/documentation.nix b/nixos/modules/misc/documentation.nix
index bc43cc33b5d..fe0263f158f 100644
--- a/nixos/modules/misc/documentation.nix
+++ b/nixos/modules/misc/documentation.nix
@@ -217,7 +217,7 @@ in
           manualCache = pkgs.runCommandLocal "man-cache" { }
           ''
             echo "MANDB_MAP ${manualPages}/share/man $out" > man.conf
-            ${pkgs.man-db}/bin/mandb -C man.conf -psc
+            ${pkgs.man-db}/bin/mandb -C man.conf -psc >/dev/null 2>&1
           '';
         in
         ''