[MacPorts] #70334: Compress ports.tar with gzip --rsyncable

[MacPorts]

#70334: Compress ports.tar with gzip --rsyncable
----------------------------+---------------------
 Reporter:  jmroot          |      Owner:  admin@…
     Type:  enhancement     |     Status:  new
 Priority:  Normal          |  Milestone:
Component:  server/hosting  |    Version:
 Keywords:                  |       Port:
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 This should save about 100 MB of storage while keeping incremental updates
 via rsync efficient. Apple's gzip doesn't have this option, but the gzip
 port does.

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Ticket URL: <https://trac.macports.org/ticket/70334>
MacPorts <https://www.macports.org/>
Ports system for macOS