[MacPorts] #69672: git 2.44.0: gitk doesn't run, "no display name and no $DISPLAY environment variable"

[MacPorts]

#69672: git 2.44.0: gitk doesn't run, "no display name and no $DISPLAY environment
variable"
----------------------+--------------------
  Reporter:  gwerbin  |      Owner:  (none)
      Type:  defect   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.9.3
Resolution:           |   Keywords:
      Port:  git      |
----------------------+--------------------

Comment (by ryandesign):

 …but users are expected to run `port variants` to discover what variants
 are available for the ports they want to install.

 {{{
 % port variants tk
 tk has the variants:
    quartz: Enable native macOS graphics support
      * conflicts with x11
    universal: Build for multiple architectures
 [+]x11: Enable X11 support
      * conflicts with quartz
 }}}

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Ticket URL: <https://trac.macports.org/ticket/69672#comment:5>
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