Added 'dupe' macro

Signed-off-by: nixnodes <code@eth.si>
Progress stats showed when not requested (-p) (rev. 2)
Bugfix: plugged memory leak when --sort given repeatedly (rev. 2) 

Signed-off-by: nixnodes <code@eth.si>
Added 'dupe-v' macro (dupeckh with progress stats)

Signed-off-by: nixnodes <code@eth.si>
Latest: 1.6-2

Signed-off-by: nixnodes <code@eth.si>