Spotting not complete Ascii letters range

[leonardo-m]

In this page:
https://rosettacode.org/wiki/Move-to-front_algorithm#Rust

I've seen the code:
(b'a'..b'z').collect()

While I suspect the correct code is:
(b'a' ..= b'z').collect()

Is this something Clippy should warn about? Perhaps in pedantic mode?