Do not fsync files after flushing them.
Do not fsync files after flushing them.

Fsync is only necessary when we are concerned about losing data when system
crashes and it is not a concern for the output of disk sort.

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