ddfs_tag: add some debug info to tag deletion.
ddfs_tag: add some debug info to tag deletion.

oldmantaiter/disco,mwilliams3/disco,discoproject/disco,pombredanne/disco,pooya/disco,pooya/disco,beni55/disco,ErikDubbelboer/disco,discoproject/disco,ktkt2009/disco,pombredanne/disco,discoproject/disco,mozilla/disco,seabirdzh/disco,oldmantaiter/disco,ktkt2009/disco,seabirdzh/disco,beni55/disco,pombredanne/disco,beni55/disco,simudream/disco,ErikDubbelboer/disco,ktkt2009/disco,beni55/disco,seabirdzh/disco,beni55/disco,pooya/disco,mozilla/disco,simudream/disco,mwilliams3/disco,ErikDubbelboer/disco,simudream/disco,oldmantaiter/disco,ktkt2009/disco,discoproject/disco,mwilliams3/disco,pombredanne/disco,oldmantaiter/disco,mwilliams3/disco,seabirdzh/disco,ErikDubbelboer/disco,simudream/disco,discoproject/disco,ktkt2009/disco,mozilla/disco,ErikDubbelboer/disco,mwilliams3/disco,pooya/disco,pombredanne/disco,mozilla/disco,seabirdzh/disco,simudream/disco,oldmantaiter/disco