Puppy Linux (Slacko 5.6) Default Root Password

Followed a set of on-line instructions to make Puppy Linux require a password upon boot-up.  This article claimed that the root password, unless otherwise set, was blank.  To my surprise this was not correct for my recent Slacko Puppy version 5.6.  With some further digging I did find that the Puppy Linux (Slacko 5.6) default root password is "woofwoof".