Fix typeo in variable name in rsa-irc example

Author: iamjpotts

examples/rsa-irc.rs

@@ -31,7 +31,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
 	let hash_hex :String = hash.as_ref().iter()
 		.map(|b| format!("{:02x}", b))
 		.collect();
-	println!("sha-512 fingerprint: {hash_tex}");
+	println!("sha-512 fingerprint: {hash_hex}");
 	println!("{pem_serialized}");
 	println!("{}", cert.serialize_private_key_pem());
 	std::fs::create_dir_all("certs/")?;