I would leave the linetype file as is.
I would further copy and rename said file for use on current and future jobs.
In the end if 'they' have nothing better to do that worry over the name of a linetype file they are focusing their energies in the wrong direction in terms of serving their clients. And as far as the clients are concerned could really care less what the name of the linetype file is as long as their projects are completed on time and under budget.
Except that I work for a contractor, AT the client's site, in the "role" of the "Drawing Office Coordinator" and if another contractor sent me a bunch of our drawings back that had messages like "Cannot find file", etc., I would not be happy about it and depending on how many we're talking about, would send 'em back and say Fix it and don't do that again. (such as the time when they did an entire job in Microstation and save them as AutoCAD files... gave us much grief.)
You're right though... Certain people here don't give a glass of crap about CAD standards... they barely acknowledge the importance of drawings. Not many like that, but there are a few.
So, back to this situation... I think I WILL leave it as is because this is the fourth time that this company has changed hands and names. We still have all kinds of drawings on old borders with the previous company names in the title blocks.
