Blackmagic ebuilds: wrong directory shown on fetch instructions

The Blackmagic ebuilds display $DISTDIR in pkg_nofetch() which no longer resolves correctly.

/usr/portage/distfiles/ should have been displayed originally but $DISTDIR now resolves to e.g. /var/tmp/portage/media-libs/blackmagic-video-11.4/distdir/ which is not correct. User feedback was that /var/cache/distfiles/ should be correct now.

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information