Fix inconsistencies in guest nick name generation
When the setting net/nick is empty, HW generates a guest name. But there were several problems:
- Team name did not match guest name
- Random guest number was re-rolled multiple times, causing inconsistencies
- Guest number was often too large (now capped at 99999)
fn main() {
#[cfg(target_os = "freebsd")]
println!("cargo:rustc-link-search=native=/usr/local/lib");
}