[patch] Portaudit and PKGNG

[Stefan Esser]

PR ports/171406 contains a patch I submitted to make portaudit work with
PKGNG:

	http://www.freebsd.org/cgi/query-pr.cgi?pr=ports/171406

It works on my systems, but definitely needs further review. The
patch just replaces "pkg_info" by "pkg info" and "pkg_version" by
"pkg version". This works fine, since PKGNG apparently supports
all the required options and kept the output format unchanged
compared to the old framework.

Regards, STefan