[MacPorts] #55626: freetype 2.8x : restore line height as it was in 2.7.1 and earlier

[MacPorts]

#55626: freetype 2.8x : restore line height as it was in 2.7.1 and earlier
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  Reporter:  RJVB      |      Owner:  ryandesign
      Type:  defect    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:  haspatch
      Port:  freetype  |
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Comment (by RJVB):

 And I am not at all delighted about them forcing form over function. If
 you read the exchanges, they fixed something they considered broken (since
 a very long time) on theoretical grounds. They do provide an alternative
 to revert to the old line-height but the instructions aren't clear and
 seem directed at software using FreeType.

 In addition, line spacing was nearly identical to line-spacing in
 CoreText, in Freetype v2.7.1 and earlier (and 2.8+ with the revert patch).
 This can be observed quite easily in simple Qt5 applications displaying
 text (say with QTextBrowser), by starting the application with or without
 the `-platform cocoa:fontengine=freetype` commandline option.

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Ticket URL: <https://trac.macports.org/ticket/55626#comment:3>
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