{environment,nix-tools}: correct default $PATH ordering to match macOS

modules/environment/default.nix

@@ -161,7 +161,7 @@ in
 
     environment.systemPath = mkMerge [
       [ (makeBinPath cfg.profiles) ]
-      (mkOrder 1200 [ "/usr/local/bin:/usr/bin:/usr/sbin:/bin:/sbin" ])
+      (mkOrder 1200 [ "/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin" ])
     ];
 
     # Use user, default and system profiles.

pkgs/nix-tools/default.nix

@@ -6,7 +6,7 @@
 , stdenv
 , profile ? "/nix/var/nix/profiles/system"
 , nixPackage ? "/nix/var/nix/profiles/default"
-, systemPath ? "$HOME/.nix-profile/bin:/etc/profiles/per-user/$USER/bin:/run/current-system/sw/bin:/nix/var/nix/profiles/default/bin:/usr/local/bin:/usr/bin:/usr/sbin:/bin:/sbin"
+, systemPath ? "$HOME/.nix-profile/bin:/etc/profiles/per-user/$USER/bin:/run/current-system/sw/bin:/nix/var/nix/profiles/default/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin"
 }:
 
 let

tests/environment-path.nix

@@ -30,8 +30,8 @@ with lib;
       "afterProfile/bin"
       "/usr/local/bin"
       "/usr/bin"
-      "/usr/sbin"
       "/bin"
+      "/usr/sbin"
       "/sbin"
       "afterPath"
     ]}"