[MacPorts] #64235: MacPorts base: patch_sites.mirror_subdir not getting appended to patch_sites URL

[MacPorts]

#64235: MacPorts base: patch_sites.mirror_subdir not getting appended to
patch_sites URL
-------------------------+--------------------
  Reporter:  jasonliu--  |      Owner:  (none)
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  base        |    Version:  2.7.1
Resolution:              |   Keywords:
      Port:              |
-------------------------+--------------------
Changes (by jasonliu--):

 * Attachment "Portfile" added.

 Since I am still working on the portfile, I'm including a minimized
 version of the portfile that demonstrates the error

-- 
Ticket URL: <https://trac.macports.org/ticket/64235>
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