update package s2ioperator

Signed-off-by: soulseen <sunzhu@yunify.com>

vendor/github.com/mailru/easyjson/jlexer/lexer.go

@@ -521,12 +521,11 @@ func (r *Lexer) SkipRecursive() {
 	r.scanToken()
 	var start, end byte
 
-	switch r.token.delimValue {
-	case '{':
+	if r.token.delimValue == '{' {
 		start, end = '{', '}'
-	case '[':
+	} else if r.token.delimValue == '[' {
 		start, end = '[', ']'
-	default:
+	} else {
 		r.consume()
 		return
 	}
@@ -1152,7 +1151,7 @@ func (r *Lexer) Interface() interface{} {
 	} else if r.token.delimValue == '[' {
 		r.consume()
 
-		ret := []interface{}{}
+		var ret []interface{}
 		for !r.IsDelim(']') {
 			ret = append(ret, r.Interface())
 			r.WantComma()