[MacPorts] #62036: git @2.30.0: gui and gitk commands don't work

[MacPorts]

#62036: git @2.30.0: gui and gitk commands don't work
-------------------------+----------------------
  Reporter:  mohd-akram  |      Owner:  ci42
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:  git         |
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Comment (by mohd-akram):

 git gui has the same error, gitk now has this:

 {{{
 application-specific initialization failed: no display name and no
 $DISPLAY environment variable
 Error in startup script: no display name and no $DISPLAY environment
 variable
     while executing
 "load /opt/local/lib/libtk8.6.dylib Tk"
     ("package ifneeded Tk 8.6.10" script)
     invoked from within
 "package require Tk"
     (file "/opt/local/bin/gitk" line 10)
 }}}

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Ticket URL: <https://trac.macports.org/ticket/62036#comment:5>
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