[MacPorts] #56003: audacity: Update to 2.2.2

[MacPorts]

#56003: audacity: Update to 2.2.2
------------------------+----------------------
 Reporter:  ryandesign  |      Owner:  RJVB
     Type:  update      |     Status:  new
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:
 Keywords:              |       Port:  audacity
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 audacity should be updated to the latest version:

 {{{
 $ port livecheck audacity
 audacity seems to have been updated (port version: 2.2.0, new version:
 2.2.2)
 }}}

 When you do, please remove the inaccurate comment that the port is using a
 release tarball (it's not; the developers don't offer them*), and remove
 the `distname` override and allow the github portgroup's default
 `distname` to be used; it works fine.

 *Well, they don't offer any release tarballs on GitHub, only
 automatically-generated ones. They do offer presumably premade tarballs at
 http://www.audacityteam.org/download/source/ but the download URLs contain
 a parameter called `expiretime` which makes me think the links will
 expire, and we wouldn't want to use expiring links in MacPorts. If we
 could find a non-expiring source of those files, and if they're suitable
 (if they contain all the files you need), then we should use them, since
 they're xz-compressed and smaller.

--
Ticket URL: <https://trac.macports.org/ticket/56003>
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