[lint] fix more issues

Author: capcom6

pkg/cache/options.go

@@ -19,9 +19,8 @@ func (o *options) apply(opts ...Option) {
 // item will expire after the given duration from the time of insertion.
 func WithTTL(ttl time.Duration) Option {
 	return func(o *options) {
-		if ttl <= 0 {
-			o.validUntil = time.Time{}
-			return
+		if ttl < 0 {
+			ttl = 0
 		}
 
 		o.validUntil = time.Now().Add(ttl)