Nahuatlan?

[Mary Hopkins]

Can I ask the list for a piece of advice? I work in a library catalog
department. Just got a piece with some Nicaraguan Nahuatl-Spanish dialect
in it. Went to check the language code (a piece of the record not visible
to users on most systems) and it informed me that the language was
"Nahuatlan." This seems like a logical enough way of covering Nahua,
Nahuatl, etc., but I don't think I'd seen it before. Furthermore it has
replaced, rather than supplemented, the code that used to just say
"Nahuatl." Perhaps I am inclined to be overly suspicious; I ought to be
grateful that they are no longer calling it "Aztec." Do list members have
any comments?
Many thanks. MH