Standard practice for many years was to add a 'service' loop at the end of every hard line. The reason was if the line broke or other wise became not servicable, you could just straigten out the cut and flair a new fitting on with out having to replace the whole line. This is a fairly 'old school' way of doing things. I don't bother any more. Done wrong it can make bleeding the brakes more of a pain as well.
Dave, 'temperature'... running them brake lines through a cool can are you
