[MacPorts] #53426: tigervnc version upgrade + destroot fix

[MacPorts]

#53426: tigervnc version upgrade + destroot fix
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 Reporter:  ccorn   |      Owner:
     Type:  update  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:  2.3.5
 Keywords:          |       Port:  tigervnc
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 TigerVNC has released a security update to version 1.7.1.
 I have updated the Portfile accordingly.
 The patch includes an additional `build.target translations` to prevent
 destroot from trying to install nonexistent `.mo` files.

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Ticket URL: <https://trac.macports.org/ticket/53426>
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