[MacPorts] #56065: github portgroup: let port override livecheck version number regex

[MacPorts]

#56065: github portgroup: let port override livecheck version number regex
--------------------------+----------------------
  Reporter:  ryandesign   |      Owner:
      Type:  enhancement  |     Status:  reopened
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  github       |
--------------------------+----------------------

Comment (by ryandesign):

 In [changeset:"17f5c7000ffae20fe396789d21db3aa5b8ae6dda/macports-ports"
 17f5c7000ffae20fe396789d21db3aa5b8ae6dda/macports-ports]:
 {{{
 #!ConfigurableCommitTicketReference repository="macports-ports"
 revision="17f5c7000ffae20fe396789d21db3aa5b8ae6dda"
 github-1.0.tcl: Add github.livecheck.regex

 See: https://trac.macports.org/ticket/56065
 }}}

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Ticket URL: <https://trac.macports.org/ticket/56065#comment:3>
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