Should have been fixed in commit 85be1e5e7b when we updated the library, but was... missed.
travis caught it after the fact at least.
README
This example implements a USB CDC-ACM device (aka Virtual Serial Port) to demonstrate the use of the USB device stack.
Board connections
| Port | Function | Description |
|---|---|---|
CN5 |
(USB_OTG_FS) |
USB acting as device, connect to computer |