Portmaster with pkgng. Small inaccuracy.

[Pavel Timofeev]

Hi! Thank you for this extremely perfect work!
I've found a small inaccuracy when I use portmaster with pkgng (WITH_PKGNG
in /etc/make.conf and use_pkgng in portmaster.rc).
In such case portmaster still fills
/var/db/pkg/${PORTNAME}-${PORTVERSION}/distfiles file.
For example:

$ cat /var/db/pkg/gmake-3.82_1/distfiles
# Added by portmaster
DISTFILE:make-3.82.tar.bz2:SIZE=1242186:SHA256=e2c1a73f179c40c71e2fe8abf8a8a0688b8499538512984da4a76958d0402966

Such file doesn't need for pkgng, but because of this pkg_info
output spoils.
Like this:

$ pkg_info
pkg_info: the package info for package 'gmake-3.82_1' is corrupt

Thats ok, but it confused me first time before I understood what was wrong.