I just broke this line replacing my water heater tubes is that bad?
Looks like the windshield washer line to me. Simply remove the broken "L" shaped fitting bring it to your local auto parts supplier and get a replacement. If you can't remove the fitting from the tube just cut the tubing at the fitting. If it looks like the tubing will be too short purchase a short length of tubing (usually sold by the foot) and 2 coupling fitting to attach the hose extensions.