Misc: marked unreachable branch.

We have already processed every possible value in [0; 255].

Author: 3Hren

src/init.rs

@@ -84,7 +84,7 @@ impl Marker {
             0xdd => Marker::Array32,
             0xde => Marker::Map16,
             0xdf => Marker::Map32,
-            _ => Marker::Reserved,
+            _ => unreachable!(),
         }
     }