[MacPorts] #52181: healpix-c, healpix-cxx: use branch variable

[MacPorts]

#52181: healpix-c, healpix-cxx: use branch variable
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  Reporter:  ryandesign@…            |      Owner:  aronnax@…
      Type:  enhancement             |     Status:  new
  Priority:  Normal                  |  Milestone:
 Component:  ports                   |    Version:  2.3.4
Resolution:                          |   Keywords:  haspatch
      Port:  healpix-c, healpix-cxx  |
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Comment (by aronnax@…):

 Nice! Please commit.

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Ticket URL: <https://trac.macports.org/ticket/52181#comment:1>
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