Fix test and documentation according to new base64 behavior

Author: ia0

cmp/tests/lib.rs

@@ -47,7 +47,7 @@ fn difference() {
                DecodeError { position: 4, kind: Length });
     assert_eq!(x.from_base64().unwrap(), vec![0, 0]);
     assert_eq!(base64::decode(x).err().unwrap(),
-               base64::DecodeError::InvalidByte(2, b'\n'));
+               base64::DecodeError::InvalidLength);
     let x = b"AAB";
     assert_eq!(BASE64.decode(x).err().unwrap(),
                DecodeError { position: 0, kind: Length });

lib/src/lib.rs

@@ -116,7 +116,7 @@
 //! | Input      | `data-encoding` | `rustc`  | `base64` | GNU `base64`  |
 //! | ---------- | --------------- | -------- | -------- | ------------- |
 //! | `AAB=`     | `Trailing(2)`   | `[0, 0]` | `[0, 0]` | `\x00\x00`    |
-//! | `AA\nB=`   | `Length(4)`     | `[0, 0]` | `Err(2)` | `\x00\x00`    |
+//! | `AA\nB=`   | `Length(4)`     | `[0, 0]` | `Length` | `\x00\x00`    |
 //! | `AAB`      | `Length(0)`     | `[0, 0]` | `[0, 0]` | Invalid input |
 //! | `A\rA\nB=` | `Length(4)`     | `[0, 0]` | `Err(1)` | Invalid input |
 //! | `-_\r\n`   | `Symbol(0)`     | `[251]`  | `Err(0)` | Invalid input |