[MacPorts] Batch modify: #15712, #54787, #55445, #55940, #56008, ...

[MacPorts]

Batch modification to #15712, #54787, #55445, #55940, #56008, #56318, #56435, #60566, #60648, #61503, #62710, #62815, #62930, #63377, #64012, #64013, #65313 by jmroot:
milestone to MacPorts 2.8.0

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Tickets URL: <https://trac.macports.org/query?id=15712%2C54787%2C55445%2C55940%2C56008%2C56318%2C56435%2C60566%2C60648%2C61503%2C62710%2C62815%2C62930%2C63377%2C64012%2C64013%2C65313>
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