nope, it's from mame.dev, I ran the command on the command line, looks clean. I can post it the generated file.
I ended up using the launchbox installed mame, something that makes me a bit nervous since I don't want to loose all the controller mappings and per-game overrides. It DOES import correctly.
I need to google about to figure out what I actually want to do, which is update my mame set from .261 to .279 preferablly without reimporting art.