Editor says "Build Facebook" in the build save window?

Not sure why this is, but on Unity 2017.1.2f1 I noticed when I hit “build” on the build window, and go to select the folder and name of the exe I’m building out, it says “Build Facebook” in the top left of the window. This is windows 7 64 bit, and windows build platform.

What’s up with that? Tried this on a blank project just to make sure somehow the project hadn’t caused it. Anybody else seeing that?

Ahh, I’m not the only one: