[MacPorts] #55775: neovim @0.2.2: mouse broken with ncurses @6.1

[MacPorts]

#55775: neovim @0.2.2: mouse broken with ncurses @6.1
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  Reporter:  yan12125  |      Owner:  raimue
      Type:  defect    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:
      Port:  neovim    |
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Comment (by stevecheckoway):

 The diff applies cleanly to v0.2.2 and restores mouse support. I've been
 using it for a few days without issues. I attached the source code patch
 and the Portfile diff.

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Ticket URL: <https://trac.macports.org/ticket/55775#comment:2>
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