RFC: Don't send CMD_CLOSE in SimpleJobPrivate::slaveDone
Currently, FileJob::close() actually closes the FileJob twice:
- (Application) FileJob::close()
- (Slave) SlaveBase::close()
- (Slave) FooSlave::close()
- (Slave) SlaveBase::finished()
- (Application) SimpleJob::finished()
- (Application) SimpleJobPrivate::slaveDone()
- (Application) Slave::send(CMD_CLOSE)
RFC because I'm wondering whether I'm missing something.