[MacPorts] #53404: `port upgrade outdated` changes colours in terminal emulation

[MacPorts]

#53404: `port upgrade outdated` changes colours in terminal emulation
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  Reporter:  ballapete  |      Owner:
      Type:  defect     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  base       |    Version:
Resolution:             |   Keywords:
      Port:             |
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Comment (by neverpanic):

 The relevant code that implements this is in https://github.com/macports
 /macports-base/blob/master/src/port/port.tcl. I'd merge a patch that fixes
 the behavior for dumb terminals.

 We have Tcllib available, which has some terminal control functions; see
 http://tmml.sourceforge.net/doc/tcllib/index.html#DIVid81bb738. Maybe one
 of those already deals with this correctly and we'd just have to use the
 correct sequences from `::term::ansi::code::attr::*` to make this work?

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Ticket URL: <https://trac.macports.org/ticket/53404#comment:8>
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