[MacPorts] #54054: grc: Update to version 1.11 and add python 3 variants

[MacPorts]

#54054: grc: Update to version 1.11 and add python 3 variants
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  Reporter:  1-61803      |      Owner:
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  grc          |
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Comment (by 1-61803):

 Replying to [comment:1 ryandesign]:

 I'll emend `depends_lib-append` and the post-destroot block indention.

 Re `supported_archs noarch`, I assumed it was a remnant of some old style,
 since the guide states "If this option is not set, it is assumed that the
 port can build for all archs.". I'll readd it if need be.

 Without `default_variants` it builds with 3.6, should I use the canonical
 recipe you pointed me at? I tested all 3 versions without problems.

 I couldn't find a way to use the portgroup python as I intended in the
 first place, nor a similar portfile that just does reinplace/xinstall with
 variants. Maybe you can name an example?

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Ticket URL: <https://trac.macports.org/ticket/54054#comment:3>
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