Early Bootup Udev Warnings

[David Baron <d_baron@012.net.il>]

Get, very early on bootup so do not have them available later in dmesg or 
logs, warnings about discontinued rules syntax. This concerns ATTR and SYSF

There are a number of rules files containing this

~$ fgrep -ril attr /etc/udev/*
/etc/udev/permissions.rules.dpkg-bak
/etc/udev/rules.d/10-vboxdrv.rules
/etc/udev/rules.d/50-android.rules
/etc/udev/rules.d/z60_xserver-xorg-input-wacom.rules
/etc/udev/rules.d/70-persistent-net.rules

fgrep -ril sysf /etc/udev/*
/etc/udev/permissions.rules.dpkg-bak
/etc/udev/rules.d/55-hpmud.rules
/etc/udev/rules.d/55-hpmud.rules.dpkg-old

Originally, the error list had hpmud and calibre but I got rid of calibre. 
Apprently, hpmud is the current offender.

What should be done about this?
Editing SYSF --> ATTR (I think I tried this once but did not really know how)?
File bug against hpmud?