included into pkg_install according to the content of /var/db/pkg_install.conf
file, which specifies version and alternative location of the tools. Format
of the said file is very simple: one line which specifies revision of the
alternative version of the tools and their location separated by space,
i.e.:
20030102 /usr/local/sbin
This would allow bsd.port.mk to install and use up to date version of tools
on older system from ports.
Also add new `-P' flag to pkg_info, which causes it to report currently
installed version of package tools.
Discussed with: will
