ports/148096: archivers/xz: packages linux_base-* can not be built from ports on amd64

[linimon at FreeBSD.org]

Old Synopsis: packages linux_base-* can not be built from ports on amd64
New Synopsis: archivers/xz: packages linux_base-* can not be built from ports on amd64

Responsible-Changed-From-To: freebsd-ports-bugs->naddy
Responsible-Changed-By: linimon
Responsible-Changed-When: Thu Jun 24 20:25:36 UTC 2010
Responsible-Changed-Why: 
This is actually a problem with dependent port archivers/xz.

http://www.freebsd.org/cgi/query-pr.cgi?pr=148096