patch: short form for unzip archive listing

[Paul Fox]

 > > 
 > > i can commit in a day or two if no one objects.
 > 
 > > -	enum {v_silent, v_normal, v_list} verbosity = v_normal;
 > > +	int verbose = 1;
 > > +	int listing = 0;
 > 
 > I think smallint will give you some small additional win in bloatcheck.

committed.  i changed these and a couple of other flag vars to
smallint, and saved another 30 bytes.

paul
=---------------------
 paul fox, pgf at brightstareng.com