print traceback on trouble if --verbose (why didn't I think of this before!?)
authorFilippo Valsorda <filippo.valsorda@gmail.com>
Tue, 11 Dec 2012 10:02:21 +0000 (11:02 +0100)
committerFilippo Valsorda <filippo.valsorda@gmail.com>
Tue, 11 Dec 2012 10:02:21 +0000 (11:02 +0100)

No differences found