On a windy night, my wife's nighthawk fell over onto my KLR, damaging the brake line.   Riding a motorcycle without a front brake is probably not the best idea, so time to order and install a new one. 
what brake line?  
The OEM line was $70 plus shipping from a dealer.   A quick check of the aftermarket showed stainless steel lines were surprisingly less expensive. 
Years ago, I installed stainless steel lines on an Audi and it provided a noticeable improvement in braking performance.   Given the KLR's notoriously weak front brake, going to stainless steel lines is a no brainer.