Please pardon the intrusion for a non-healey question. My son is working on the brakes for his off-road camper van. He is replacing brake lines and encountered the coiled brake line on the van shown in the photo below. The coil is just next to the master cylinder. Is there a design/function reason for the coil in the line or did someone just create the coil to effectively shorten the line and make it fit properly? He said that it appears factory but hard to tell and he doesn't know the full history of the vehicle.