[MacPorts] #58656: Show URL in "port info"

[MacPorts]

#58656: Show URL in "port info"
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  Reporter:  FranklinYu   |      Owner:  (none)
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  base         |    Version:
Resolution:               |   Keywords:
      Port:               |
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Description changed by FranklinYu:

Old description:

> Homebrew shows URL of a formula in `brew info`. It would be cool if
> MacPorts shows similar things. For example, when I do `port info giflib`
> I would like to see
>
> {{{Portfile URL: https://github.com/macports/macports-
> ports/blob/master/graphics/giflib/Portfile}}}

New description:

 Homebrew shows URL of a formula in `brew info`. It would be cool if
 MacPorts shows similar things. For example, when I do `port info giflib` I
 would like to see

 {{{Portfile URL: https://github.com/macports/macports-
 ports/blob/master/graphics/giflib/Portfile}}}

 Some user would also find it useful if `port info` also displays path to
 local `Portfile`, but that may be beyond the scope of this ticket.

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Ticket URL: <https://trac.macports.org/ticket/58656#comment:1>
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