Merge pull request #183600 from K900/fix-nixos-rebuild-flake-args

nixos-rebuild: always set flakeFlags

pkgs/os-specific/linux/nixos-rebuild/nixos-rebuild.sh

@@ -20,7 +20,7 @@ origArgs=("$@")
 copyClosureFlags=()
 extraBuildFlags=()
 lockFlags=()
-flakeFlags=()
+flakeFlags=(--extra-experimental-features 'nix-command flakes')
 action=
 buildNix=1
 fast=
@@ -120,7 +120,6 @@ while [ "$#" -gt 0 ]; do
         ;;
       --flake)
         flake="$1"
-        flakeFlags=(--extra-experimental-features 'nix-command flakes')
         shift 1
         ;;
       --no-flake)