[MacPorts] #63707: clang-13: fix for SnowLeopard

[MacPorts]

#63707: clang-13: fix for SnowLeopard
-----------------------+----------------------------------
  Reporter:  kencu     |      Owner:  (none)
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:  snowleopard haspatch
      Port:  clang-13  |
-----------------------+----------------------------------
Changes (by kencu):

 * keywords:  snowleopard => snowleopard haspatch


-- 
Ticket URL: <https://trac.macports.org/ticket/63707#comment:2>
MacPorts <https://www.macports.org/>
Ports system for macOS