Function is_rust_dev_bundle 

pub fn is_rust_dev_bundle(name: &str) -> bool

Does name look like a rust-dev bundle archive — rust-dev-<...>.znippy? (e.g. rust-dev-rhel8-1.97.1.znippy). Used by the bundle-name subcommand and by a caller that wants to route a .znippy to this classifier.