Fix uppercase hex serialization

Author: aurexav

src/serde.rs

@@ -151,10 +151,10 @@ where
 /// ```
 pub fn ser_hexify_prefixed_upper<T, S>(value: &T, serializer: S) -> Result<S::Ok, S::Error>
 where
-	S: Serializer,
-	T: Hexify,
+        S: Serializer,
+        T: Hexify,
 {
-	serializer.serialize_str(&value.hexify_prefixed())
+        serializer.serialize_str(&value.hexify_prefixed_upper())
 }
 
 /// Deserialize string to bytes.
@@ -399,11 +399,11 @@ fn serde_should_work() {
 	let result = serde_json::to_string(&ljf);
 	assert!(result.is_ok());
 
-	let json = result.unwrap();
-	assert_eq!(
-		json,
-		r#"{"_0":"34","_1":"208","_2":"0x4f5da2","_3":"0x4f5da2","_4":"4f5da2","_5":"4F5DA2","_6":"0x4c6f7665204a616e6520466f7265766572","_7":"0x4c6f7665204a616e6520466f7265766572","_8":"Love Jane Forever"}"#
-	);
+        let json = result.unwrap();
+        assert_eq!(
+                json,
+                r#"{"_0":"34","_1":"208","_2":"0x4f5da2","_3":"0x4F5DA2","_4":"4f5da2","_5":"4F5DA2","_6":"0x4c6f7665204a616e6520466f7265766572","_7":"0x4C6F7665204A616E6520466F7265766572","_8":"Love Jane Forever"}"#
+        );
 
 	let result = serde_json::from_str::<LjfPredefined>(&json);
 	assert!(result.is_ok());