Merge pull request #112717 from siraben/stdenv-lib-warning

stdenv/generic: recommend lib instead of pkgs.lib in place of stdenv.lib

pkgs/stdenv/generic/default.nix

@@ -155,9 +155,9 @@ let
       # Slated for removal in 21.11
       lib = if config.allowAliases or true then builtins.trace
         ( "Warning: `stdenv.lib` is deprecated and will be removed in the next release."
-         + " Please use `pkgs.lib` instead."
+         + " Please use `lib` instead."
          + " For more information see https://github.com/NixOS/nixpkgs/issues/108938")
-        lib else throw "`stdenv.lib` is a deprecated alias for `pkgs.lib`";
+        lib else throw "`stdenv.lib` is a deprecated alias for `lib`";
 
       inherit fetchurlBoot;