This is a RUMOUR. I have seen one youtube comment claiming this, with no proof attached. So I'm looking for proof one way or the other.

Does anyone know if the audio was changed from the original to remove offensive language?

Grim Fandango has/had offensive language?
I've played the first year in german language and so far there are, as far as i remember the original game, no dialogue differences to the original version.

There's not a lot of swear words here to begin with (I can't even think of any off the top of my head), but yeah, nothing was changed. The dialog is the same as it was in 1998.