[MacPorts] #38662: RFE: Replace "command execution failed" with a more informative error message

[MacPorts]

#38662: RFE: Replace "command execution failed" with a more informative error
message
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 Reporter:  egall@…      |      Owner:  macports-tickets@…
     Type:  enhancement  |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  base         |    Version:  2.1.3
 Keywords:               |       Port:
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 One thing I've noticed from looking at a bunch of trac tickets is that
 users will often report their errors as "`command execution failed`", when
 in reality, the log and debug output will show something more specific.
 It'd be useful to replace the "`command execution failed`" message with
 something more informative, so that maintainers don't have to go changing
 this in ticket titles all the time.

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Ticket URL: <https://trac.macports.org/ticket/38662>
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