Merged revisions 70223 via svnmerge from

svn+ssh://pythondev/python/trunk

........
  r70223 | guilherme.polo | 2009-03-06 23:14:38 -0300 (Fri, 06 Mar 2009) | 4 lines

  Fixed issue #2638: Show a window constructed with tkSimpleDialog.Dialog only
  after it is has been populated and properly configured in order to prevent
  window flashing.
........