Log Message:
Update "x11-links" package to version 0.45:
1.) Update list to remove duplicates and add missing entries for recent
    versions of NetBSD-current. The necessary changes were supplied
    by Bernd Ernesti.
2.) Include the operating system version number in the package version
    to force a re-build of the package if the operating system is
    updated (which might change the X11 distribution as well.
This should fix PR pkg/42492.

Change approved by Thomas Klausner.