The ESB SE also uses Luke's line "You're lucky to get out of there" as opposed to the more conventional "You're lucky you don't taste very good" after the swamp monster spits out R2. Some people thought the line was changed and added for the SE, it was not. It was there all along, just in another sound mix. Which mix I'm not sure, 70mm perhaps. It is also in the original "Story of" recording for ESB.
Are you 100% sure about this? I thought it was one of the many superfluous SE changes. I don't recall Luke ever saying that before the SE version, but I have not watched all of the LD/VHS versions, either. Needless to say the change is still annoying-the original line was much better.