undocumented tar --unlink switch

perryh at pluto.rain.com perryh at pluto.rain.com
Sat Aug 2 23:36:32 UTC 2008

Around line 37 of /usr/src/usr.sbin/pkg_install/add/extract.c
there's an invocation of /usr/bin/tar with a --unlink switch,
which I don't see mentioned in the tar(1) manpage.  Anyone
happen to know what this does, or do I need to dig into the

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