Brake Fluid Leak problems of the 2008 Dodge Ram 2500

The bracket that hold the break line to the rear end (axle) had rubbed the metal break line until it wore through the line and then split causing brake fluid to leak out (fast). I noticed my break peddle start going to the floor, I was driving on the highway when I pushed the break peddle to slow down because there was a speed zone ahead, the break peddle went to the floor. That's when the e break warning light came on notifying me that my break fluid was low or empty. I have a manual transmission so I was able to shift down to slow down, even though I was still trying to use my brakes the peddle would to the floor, stopping was 90% gone, I had to use my e brake to come to a complete stop. . When I stop the vehicle that's when I looked underneath the truck and noticed a large puddle of break fluid, I could also see a stream of fluid where I pulled in at. So it was spraying out when I was using the breaks to slow down and stop. When I got home I looked where truck is always parked there no fluid had been leaked there. Between my home and the 36 miles to town it had the bracket had rubbed through and split the break line. My mechanic stated that the bracket had been rubbing the brake line for a while to split open like that. I had to replace the metal brake line that went to the rear passenger brake. Now I'm worried that this might happened to my other brake lines. It never states that I'm to check for wearing on metal lines. Nothing after market has been done to this vehicle it's 100% stock as it was when bought from the dealership. To me this a serious problem that could have lead to an accident which could kill or hurt a person/people. This is a factory default and needs to be addressed immediately! a simple rubber protect piece needs to be place on the bracket and/or line to protect this from happening again!!.