Log Message:
When installing mkspecs using 'cp -R' specify what should happen
to symlinks by adding '-L'. (The default is undefined per POSIX.)
This way, SunOS and other opsys have the same PLIST and we don't have
to care that buildlink3 doesn't symlink symlinks.

Addresses
https://mail-index.netbsd.org/tech-pkg/2012/01/21/msg008411.html

Solution suggested by Niclas Rosenvik in private mail.

Bump PKGREVISION.