ports/171833: [pkgng] pkg2ng shouldn't purge everything under /var/db/pkg

[matthew at FreeBSD.org]

Synopsis: [pkgng] pkg2ng shouldn't purge everything under /var/db/pkg

Responsible-Changed-From-To: freebsd-ports-bugs->matthew
Responsible-Changed-By: matthew
Responsible-Changed-When: Sat Sep 22 07:29:53 UTC 2012
Responsible-Changed-Why: 
Take

http://www.freebsd.org/cgi/query-pr.cgi?pr=171833