should KERNEL_VERSION_SANITY_SKIP be in variables glossary?

i see the opening of the corresponding task in kernel.bbclass:

  do_kernel_version_sanity_check() {
        if [ "x${KERNEL_VERSION_SANITY_SKIP}" = "x1" ]; then
                exit 0
        fi

and i see that that variable is set in linux-yocto-dev.bb. should it
be mentioned in the variables glossary as being of general usage?

rday