Revert "Fix syntax error in nixos/lib/build-vms.nix, introduced by 86c0f8c"

This reverts commit 704e91bab005eabe968a3b140222fb0cf7afd4db.

Changed files
+1 -1
nixos
+1 -1
nixos/lib/build-vms.nix
···
[ { address = "192.168.${toString first}.${toString m.second}";
prefixLength = 24;
} ];
-
});
+
}
in
{ key = "ip-address";
config =