Comment # 4 on bug 1150532 from Matthias Gerstner

Since there's no maintainer left for apt-cacher-ng I've filed a delete request
for the package in Factory. This delete request got accepted by now. I'm
decoupling this bug from the CVE sub-bugs. For the CVE I've submitted
maintenance update for Leap myself.

Therefore no whitelisting for apt-cacher-ng regarding the cron job is
necessary. Closing this bug as WONTFIX.