How to recreate the Admin password? (source)

This is a comment on Upgrade notices for 5.5.x, posted by WikiAdmin at 26.04.2018 12:13

View source for How to recreate the Admin password?

Hello

I have successfully updated my Wacko from 5.4 to 5.5. Beta following these notes here. However; I don't understand point 4.1 Recreate Admin password.