[MacPorts] #69055: port: non-root local port build hardcodes rsync path

[MacPorts]

#69055: port: non-root local port build hardcodes rsync path
--------------------+--------------------
 Reporter:  lukaso  |      Owner:  (none)
     Type:  defect  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  base    |    Version:
 Keywords:          |       Port:
--------------------+--------------------
 The locally built `port` command fails because it is looking for rsync in
 a standard `port` install location.

 {{{
 $ ~/macports-gimp3-arm64/bin/port -v selfupdate
 (master *$%=)
 --->  Updating MacPorts base sources using rsync
 sh: /opt/local/bin/rsync: No such file or directory
 Command failed: /opt/local/bin/rsync -rtzvl --delete-after
 --include=/base.tar --include=/base.tar.rmd160 --exclude=*
 rsync://rsync.macports.org/macports/release/tarballs/
 /Users/lukasoberhuber/macports-
 gimp3-arm64/var/macports/sources/rsync.macports.org/macports/release/tarballs
 Exit code: 127
 Error: Error synchronizing MacPorts sources: command execution failed
 Error: Follow https://guide.macports.org/#project.tickets if you believe
 there is a bug.
 Error: /Users/lukasoberhuber/macports-gimp3-arm64/bin/port: port
 selfupdate failed: Error synchronizing MacPorts sources: command execution
 failed
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/69055>
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