Some guesswork:

The article "On Shanties" in _Once A Week_ 1 August, 1968, mentions, in one breath,

"Land ho, boys, Land ho; Haul away, my Josey; and Boney was a Warrior".

I wonder is "land ho, boys, land ho" was the author's hearing of "ranzo, boys, ranzo."

This was the same author that heard "Oh Shanandore" as "Oceanida," so...