[MacPorts] Batch modify: #60371, #65569, #67520, #67989, #68308, ...

[MacPorts]

Batch modification to #60371, #65569, #67520, #67989, #68308, #69782, #71245, #71942 by mascguy:
component to legacy-support

Comment:
Recategorize legacy-support lib tickets.

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Tickets URL: <https://trac.macports.org/query?id=60371%2C65569%2C67520%2C67989%2C68308%2C69782%2C71245%2C71942>
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