[MacPorts] #31203: Updated ports for xfce 4.8

[MacPorts]

#31203: Updated ports for xfce 4.8
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  Reporter:  ak.ml@…                             |      Owner:  afb@…
      Type:  update                              |     Status:  assigned
  Priority:  Normal                              |  Milestone:
 Component:  ports                               |    Version:  2.0.3
Resolution:                                      |   Keywords:  xfce,
      Port:  exo, garcon, gtk-xfce-engine,       |  haspatch
  libxfce4ui, libxfce4util, libxfcegui4, orage,  |
  ristretto, Terminal, Thunar, xfce-utils,       |
  xfce4-appfinder, xfce4-panel, xfce4-session,   |
  xfce4-settings, xfconf, xfdesktop, xfwm4       |
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Comment (by jeremyhu@…):

 I spent a few minutes on this updating the core libraries (patch
 attached).  Someone else needs to pick up the torch and complete the work
 if they care about having xfce in MacPorts.

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Ticket URL: <https://trac.macports.org/ticket/31203#comment:18>
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