quicksetup: fixed a few strings not being displayed

Reported by Rodin.s here:
http://www.murga-linux.com/puppy/viewtopic.php?p=748489#748489

I just replaced variables (that, due to recent changes, are no longer defined in the code) with actual gettext strings, in the same manner as it is done later in the code (see further occurences of FLAG_CHANGED= ).

Greetings!