Pre set 2 refactors

examples/set1_5/main.rs

@@ -3,7 +3,7 @@ use cryptopals::{prelude::*, bvec};
 fn main() {
     let input = Vec::from_text(
         "Burning 'em, if you ain't quick and nimble
-I go crazy when I hear a cymbal");
+I go crazy when I hear a cymbal").unwrap();
     let output = bvec!("output.txt");
 
     assert_eq!(input.xor_repeating(&b"ICE".to_vec()).unwrap(), output);