smart upgrade --dump not working with python 2.3

[Anders F Björklund]

Traceback (most recent call last):
  File "/usr/bin/smart", line 194, in ?
    main(sys.argv[1:])
  File "/usr/bin/smart", line 167, in main
    exitcode = iface.run(opts.command, opts.argv)
  File "/usr/lib/python2.3/site-packages/smart/interface.py", line 53, in run
    result = _command.main(self._ctrl, opts)
  File "/usr/lib/python2.3/site-packages/smart/commands/upgrade.py", line 181, in main
    ctrl.dumpTransactionPackages(trans, install=True)
  File "/usr/lib/python2.3/site-packages/smart/control.py", line 424, in dumpTransactionPackages
    ops = set()
NameError: global name 'set' is not defined

Forgot a patch needed on CentOS 4 and similar old platforms (i.e. with Python 2.3 only)

[Gustavo Niemeyer (niemeyer)]

Applied in the trip-work branch, thanks!

[Anders F Björklund (afb)]

Released, 2009-03-04