Quoting Andreas Schwab <schwab@suse.de>:
If you want a different name just specify it explicitly via --build/--host/--target. There is nothing wrong with putting the release in the canonical name.
Completely off-topic but the word "canonical" is used in American software literature and I have never worked out what they think it means. According to Chambers English Dictionary: "canonical adj 1 according to, of the nature of or included in a canon. 2 regular. 3 orthodox or accepted. 4 ecclesiastical." None of which looks likely in the context it is used in.