looking to clarify *more* variables that depend on packaging backend

  (don't have access to my build system so i can't run a simple test.)

i'm reading the section on "Excluding Packages from an Image":

https://docs.yoctoproject.org/dev-manual/packages.html#excluding-packages-from-an-image

and we already know this sentence is inaccurate:

"Each of these variables only works with IPK and RPM package types,
not for Debian packages."

because i've already submitted a patch that corrects that for the
PACKAGE_EXCLUDE variable. but what about the other two? i can't test
but i can check the code and in the rootfs_deb.bbclass:

https://git.openembedded.org/openembedded-core/tree/meta/classes-recipe/rootfs_deb.bbclass

i can see the test for one of those variables but not the other:

python rootfs_deb_bad_recommendations() {
    if d.getVar("BAD_RECOMMENDATIONS"):
        bb.warn("Debian package install does not support BAD_RECOMMENDATIONS")
}
do_rootfs[prefuncs] += "rootfs_deb_bad_recommendations"

  so unless there some testing done somewhere else, can i conclude
that DEB packaging *does* recognize the NO_RECOMMENDATIONS variable
but not the BAD_RECOMMENDATIONS variable? if that's true, i can whip
up a patch to fix that.

rday