[MacPorts] #47706: base: postflight.in: Missing check causes duplicate PATH entries when sourcing CONF_FILE

[MacPorts]

#47706: base: postflight.in: Missing check causes duplicate PATH entries when
sourcing CONF_FILE
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  Reporter:  anonymous@…  |      Owner:  macports-tickets@…
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  base         |    Version:  2.3.3
Resolution:               |   Keywords:
      Port:               |
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Comment (by ryandesign@…):

 That's not a bad idea. I might use separate lines for bin and sbin, in
 case the user has them in a different order for some reason.

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Ticket URL: <https://trac.macports.org/ticket/47706#comment:2>
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