[PATCH] extfs scripts fixes

[Pavel Roskin]

Hello!

So far the only unapplied patches are for uha, ulha and uarj.  All are 
trivial but need testing.  Some old archivers can print something to 
stderr when everything is OK.

Besides, uarj is almost useless because it requires patched unarj.  I
don't think many users will patch and recompile unarj just to make is
compatible with mc.

I'd rather have poor support (i.e. without subdirectories) that works
out-of-box.  I can always use "unarj x" is I want to examine the contents 
with the directory tree.

-- 
Regards,
Pavel Roskin