🎨 style: update and fix some code style error

byteutil/byteutil.go

@@ -1,3 +1,4 @@
+// Package byteutil provides some useful functions for byte slice.
 package byteutil
 
 import (

byteutil/conv.go

@@ -103,8 +103,7 @@ func ToBytesWithFunc(v any, usrFn ToBytesFunc) ([]byte, error) {
 	default:
 		if usrFn == nil {
 			return nil, comdef.ErrConvType
-		} else {
-			return usrFn(val)
 		}
+		return usrFn(val)
 	}
 }

dump/dump_test.go

@@ -290,7 +290,7 @@ func ExampleStruct_mapInterfacedValue() {
 	fmt.Println(s2)
 }
 
-func TestStruct_ptrField(t *testing.T) {
+func TestStruct_ptrField(_ *testing.T) {
 	type userOpts struct {
 		Int *int
 		// use ptr

dump/dumper_test.go

@@ -154,7 +154,7 @@ func TestDump_Ptr(t *testing.T) {
 }
 
 // code from https://stackoverflow.com/questions/42664837/how-to-access-unexported-struct-fields-in-golang
-func TestDumper_AccessCantExportedField(t *testing.T) {
+func TestDumper_AccessCantExportedField(_ *testing.T) {
 	type MyStruct struct {
 		// id string
 		id any

maputil/format.go

@@ -92,16 +92,16 @@ func (f *MapFormatter) doFormat() {
 	}
 
 	for i, key := range rv.MapKeys() {
-		kStr := strutil.QuietString(key.Interface())
+		strK := strutil.SafeString(key.Interface())
 		if indentLn > 0 {
 			buf.WriteString(f.Indent)
 		}
 
-		buf.WriteString(kStr)
+		buf.WriteString(strK)
 		buf.WriteByte(':')
 
-		vStr := strutil.QuietString(rv.MapIndex(key).Interface())
-		buf.WriteString(vStr)
+		strV := strutil.SafeString(rv.MapIndex(key).Interface())
+		buf.WriteString(strV)
 		if i < ln-1 {
 			buf.WriteByte(',')