I have never heard of that requirement before, and I surely am not the only one. I won't be able to update my packages quite soon, but I'll try to get things sorted out in August.
I'll have to touch:
adduser- doesn't use debhelper, manual change committed to VN
snoopy- fixed in 1.3-10, now properly using debhelper's macros
Packages that I co-maintain which are affected as well (so I need to keep an eye on):
exim4 is not affected, Andreas has thought of that. Good.