The fact is the word appears one time. They are both liars like you. Try it yourself. Can you do a word search or do you need help? wallbuilder = liebuilder.
In the Confederate lexicon both words mean the same thing, with one expression "property in slaves" saying it all.
Yup, the Constitution of the Confederacy is covered over with the linguistic appurtenances of human bondage (to be polite about it).