fix: improve error message formatting in MorseCodeDecode and update XXH64 command aliases

Author: abhimanyu003

processors/morse.go

@@ -235,7 +235,7 @@ func (p MorseCodeDecode) Transform(data []byte, f ...Flag) (string, error) {
 			found = true
 		}
 		if !found {
-			return res, fmt.Errorf("unknown character <" + part + "> in " + codeLang)
+			return res, fmt.Errorf("unknown character < %s > in + %s", part, codeLang)
 		}
 	}
 

processors/xxhash_test.go

@@ -14,7 +14,7 @@ func TestXXHash64_Command(t *testing.T) {
 		name        string
 		title       string
 	}{
-		alias:       []string{""},
+		alias:       []string{"xxh64", "xxhash64", "xxhash-64"},
 		description: "Get the XXH64 checksum of your text",
 		filterValue: "xxHash - XXH64 (xxh-64)",
 		flags:       nil,