Yes, that's from scribble/manual. It's Racket's version number. Changing the first two lines of code to:
#lang scribble/base @(require scribble/core) Removes the version number. -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
